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The 1-9 INTP Enneagram Types and INTP-A (Assertive) and INTP-T (Turbulent) 

INTP Subtypes

INTP Enneagram Types, INT-A (Assertive), and INTP-T (Turbulent) represent subtypes of the INTP “Thinker” personality type. The Thinker is one of sixteen personalities under the Myers-Briggs Type Indicator (MBTI). The MBTI defines INTPs as analytical, reserved albeit critical people who are dominated by four psychological attitudes (Introversion, Intuition, Thinking, and Perceiving) and four cognitive functions (Introverted Thinking, Extroverted Intuition, and Extroverted Feeling) based on Jungian psychology.

According to the MBTI’s typology, INTPs may demonstrate qualities of the main Assertive or Turbulent subtypes. Assertive Thinkers, or INTP-As, are confident and stubborn. Meanwhile, Turbulent Thinkers lack confidence but exhibit stronger emotional intelligence.

Outside of the Assertive or Turbulent subtypes, INTPs may take the Enneagram of Personality to determine their Enneagram type or “enneatype”. Below is a list of the nine INTP Enneagram Types and their definitions.

  • INTP Enneagram Type 1: INTPs with Enneatype 1 are great problem solvers whose ethical mindset and analysis are sometimes thwarted by perfectionistic tendencies.
  • INTP Enneagram Type 2: INTPs with Enneatype 2 are dutiful and dedicated to helping others. However, Type 2 Thinkers may overstep because their analytical mindset prompts them to cross people’s boundaries.
  • INTP Enneagram Type 3: INTPs with Enneatype 3 appear extroverted due to their outspokenness, superficiality, and fixation on success, but they retain their innate introversion
  • INTP Enneagram Type 4: INTPs with Enneatype 4 are individualistic and decisive, departing from the Thinker’s typical indecision. Type 4 Thinkers are also very self-critical.
  • INTP Enneagram Type 5: INTPs with Enneatype 5 typify many of the Thinker’s core features. For example, Type 5 INTPs are highly analytical and independent if emotionally distant and closed off.
  • INTP Enneagram Type 6: INTPs with Enneatype 6 are natural skeptics, questioning long-held beliefs and perplexing theories. Type 6 Thinkers also have great powers of observation.
  • INTP Enneagram Type 7: INTPs with Enneatype 7 act rashly at times, but they exhibit an enterprising, goal-focused personality that helps them succeed.
  • INTP Enneagram Type 8: INTPs with Enneatype 8 are also ambitious. However, Type 8 Thinkers may sometimes be uncompromising or stubborn because of their assertive personalities.
  • INTP Enneagram Type 9: INTPs with Enneatype 9 value peace and stability. Type 9 Thinkers believe keeping the peace is the rational route, so they’re often non-confrontational.

Socially, INTPs appear rational and analytical if at times cold or overly critical. Thinkers will exhibit differences due to their enneatypes but retain their core physiological attitudes and cognitive functions. INTPs can better understand their enneatype by taking the MBTI and Enneagram tests, then reviewing how the test results overlap by reading this article.

1. INTP Enneagram Type 1

The INTP Enneagram Type 1 is a subtype combining the INTP and Enneagram 1 personality. Type 1 INTPs additionally demonstrate INTP-A characteristics as ethical, comprehensive Thinkers who take action and solve problems.

INTPs with Enneatype 1 exhibit two notable strengths. Firstly, Type 1 INTPs have great problem-solving skills because they’re capable of comprehensive analysis, always considering the big picture. Secondly, Type 1 Thinkers are highly ethical, demonstrating a keen desire to find the “correct” theory or idea. The INTP Enneagram Type 1 additionally demonstrates two primary weaknesses. Firstly, Type 1 Thinkers fall prey to perfectionism, exhibiting high standards which leads to indecision, dissatisfaction, and self-criticism. Secondly, INTPs with Enneatype 1 may act controlling because of their innate perfectionism.

INTPs with Enneatype 1 are adept at finding solutions for friends, family, and coworkers. Although people appreciate them for their analytical thinking, Type 1 INTPs may sometimes feel like they’re underutilizing or undervaluing their skills and imagination. Famous INTPs like German philosopher Immanuel Kant serve as an example of a well-positioned Type 1 Thinker. Kant applied his analytical mind to breach new ways of thinking during the Age of Enlightenment. He and other Type 1 INTPs contrast with Type 9 INTPs because the latter are sometimes reluctant to share their ideas and inner philosophies.

2. INTP Enneagram Type 2

The INTP Enneagram Type 2 describes Thinkers with an Enneagram 2 personality. INTPs with Enneatype 2 apply their skills to assist others, displaying the confidence and assertiveness of the main INTP-A subtype.

Type 2 Thinkers have two main strengths. Firstly, INTPs with the Enneagram 2 subtype are observant, a trait they utilize to detect and resolve problems. Secondly, Type 2 INTPs are uniquely dutiful, applying their unconventional minds for the sake of others. The INTP Enneagram Type 2 also exhibits two notable weaknesses. Firstly, INTPs with Enneatype 2 sometimes lack boundaries and can be overly assertive while trying to help. Secondly, Type 2 Thinkers are easily frustrated if they don’t see much progress with a problem they’re trying to solve. The Type 2 Thinker’s frustration may cause them to appear arrogant, or overly critical, a key INTP weakness.

The INTP personality is not typically empathetic due to the Thinking (T) function. That said, Type 2 Thinkers like American actress Meryl Streep find satisfaction in helping others because they often believe they know how to solve problems. Unfortunately, Type 2 Thinkers still retain the core INTP weaknesses like criticism. As a result, INTPs with Enneatype 2 may act arrogantly or condescending despite sincerely wanting to help others, especially to romantic partners. Type 2 Thinkers are similar to yet contrast with Type 1 Thinkers. The latter use their skills to help others but struggle with self-satisfaction.

3. INTP Enneagram Type 3

The INTP Enneagram Type 3 is an Enneagram-based subtype of the INTP personality. INTPs with Enneatype 3 want to achieve and desire recognition from others, which firmly aligns them with the more sensitive INTP-T subtype. In addition, INTP Type 3s appear to be more in tune with their interior cognitive function, Extroverted Feeling (Fe).

Type 3 INTPs exhibit two primary strengths. Firstly, Thinkers with a Type 3 Enneagram personality are very meticulous, demonstrating great care and effort for their projects and various ambitions. Secondly, INTP Type 3s are outspoken because they’re more in touch with the Fe function than more reserved Thinkers are. The INTP Enneagram Type 3 additionally displays two notable weaknesses. Firstly, INTPs with Enneatype 3 can be vain as they’re fixated on success and getting ahead. Secondly, Type 3 INTPs are sometimes superficial because they’re concerned with appearances. Consequently, INTP Type 3 may also act arrogantly and as though they know the answer when they don’t.

Type 3 INTPs stand out from other INTPs due to their stronger Fe function. As they desire recognition and acclaim for their methodical minds, INTPs with Enneatype 3 have a greater social presence. However, INTPs are also susceptible to peer pressure due to their Turbulent tendencies, clashing with the highly independent and assertive INTP Enneagram Type 4. One highly acclaimed celebrity with a Type 3 INTP personality is American actor John Malkovich. He appears extroverted like other Type 3 Thinkers but retains his introverted and analytical qualities.

4. INTP Enneagram Type 4

The INTP Enneagram Type 4 is an individualistic subtype of the Thinker personality. INTP Type 4s belong to the main INTP-T (Turbulent) subtype because they lack self-confidence and tend to overanalyze.

INTPs with Enneatype 4 have two main strengths. Firstly, Type 4 INTPs have a keen sense of judgment, exemplifying their dominant personality’s analytical nature. Second, Thinkers with Enneagram 4 qualities can be decisive, overcoming their innate disorganization and absent-mindedness to be more proactive than other Turbulent Thinkers. The INTP Enneagram Type 4 additionally features two core weaknesses. Firstly, INTPs with Enneatype 4 self-criticize—often turning their analytical eye on themselves due to their stronger tertiary Introverted Sensing (Si) function. Secondly, Type 4 Thinkers are sometimes envious as a result of their overanalyzing tendencies and Turbulent qualities.

All Thinkers have a predisposition for overthinking and self-criticizing, but INTPs with Enneatype 4 project their insecurities onto others. Conversely, Type 4 INTPs are also more decisive than other INTPs, particularly other INTP-Ts. One example is Bo Burnham, a famous INTP and Enneagram Type 4. Burnham exhibits self-critical qualities but he nonetheless proactively tackles various projects, like his viral hit Bo Burnham: Inside. In addition, Burnham and other Type 4 INTP contrast with more assertive, confident types like INTP Enneagram Type 8.

5. INTP Enneagram Type 5

INTP Enneagram Type 5 is a subtype of the Thinker and Enneagram 5 personalities. INTP Type 5s are also categorized as INTP-As because they demonstrate confidence in their e analytical qualities and have a strong connection to their dominant Introverted Thinking (Ti) function.

INTPs with Enneatype 5 exhibit two primary strengths. Firstly, Type 5 INTPs are highly independent which fuels their ambition, vivid sense of imagination, and innovative ideas. Secondly, Thinkers with a Type 5 Enneagram are highly analytical, demonstrating an investigative approach to life’s problems. The INTP Enneagram Type 5 additionally exhibits two notable weaknesses. Firstly, INTPs with Enneatype 5 are emotionally distant, a typical Assertive Thinker quality. Secondly, people with an INTP Enneagram 6 personality can be self-critical, largely due to measuring their self-worth by their knowledge or expertise.

Self-criticism, analytical thinking, and emotional distance are all common Thinker traits that Type 5 INTPs exemplify. Socially, Type 5 INTPs tend to push people away and prioritize their pursuits over loved ones—but they make up for it through their innovative ideas, such as in the case of Albert Einstein. As a famous INTP with a 5 enneatype, Albert Einstein made exceptional contributions to science despite his troubling personal life. INTPs with Enneatype 5 are by no means unfeeling, but they contrast with more grounded, caring Type 2 INTPs who focus their efforts on others.

6. INTP Enneagram Type 6

The INTP Enneagram Type 6 describes people who test for the Thinker and Enneagram 6 personalities. INTPs with Enneatype 6 additionally exhibit Turbulent INTP characteristics due to their self-conscious thinking.

Two main strengths further characterize the INTP Enneagram Type 6 personality. Firstly, INTPs with Enneatype 6 have strong observation skills (even though they may trust this part of themselves). Secondly, INTPs with the Six enneatype are very thorough, working hard to be accurate and well-informed. The INTP Enneagram Type 6 also features two notable weaknesses. Firstly, Type 6 INTPs are distrustful because they’re natural skeptics; they like to question long-held beliefs and theories. Secondly, INTPs with Enneatype 6 act cautiously because they tend to prepare for the worst.

Socially, INTPs with Enneatype 6 can be great friends and employees due to their thoroughness, but they may be held back by their faults. Furthermore, innate analytical thinking means Type 6 INTPs will look beneath the surface for motivations that are not there. As a result, the INTP Enneagram Type 6 personality does not trust their analytical prowess as Type 5 INTPs do.

A prime example of an observant and distrustful INTP is Galileo Galilei, who famously asserted that the Earth revolved around the sun rather than the other way around. Galileo was harshly punished for his theory by the Catholic Church and lived the rest of his life under house arrest.

7. INTP Enneagram Type 7

The INTP Enneagram Type 7 is a Thinker and Enneagram 6 subtype with enthusiastic qualities. Type 7 INTPs fall under the main INTP-T subtype as they also demonstrate a lack of confidence.

INTPs with Enneatype 7 exhibit two primary strengths. Firstly, INTPs with Enneatype 7 are goal-focused, demonstrating a keen desire for a forward-thinking lifestyle. Secondly, Type 7 INTPs are enterprising, meaning they want to promote their ideas and harness new knowledge. People with an INTP Enneagram 7 personality also have two main weaknesses. Firstly, INTPs with Enneatype 7 can act rashly due to their Perceiving (P) trait. Secondly, INTPs with Enneatype 7 are sometimes callous, ignoring their better judgment for the sake of their ambitions.

Thinkers are not inherently outgoing, but INTPs with Enneatype 7 are notable because they channel their passion into innovation. Type 7 INTPs deeply value their ideas—which may lead to a seemingly extroverted mindset and even callous actions. We see this in Felix Kjellberg, better known as PewDiePie, an internet celebrity with INTP and Enneagram 7 traits. Felix Kjellberg is highly enterprising if at times controversial as evidenced by his ongoing popularity. Kjellberg and other Type 7 INTPs contrast with more ethical, comprehensive subtypes like INTP Enneagram Type 1.

8. INTP Enneagram Type 8

The INTP Enneagram Type 8 is a determined subtype of the Thinker and Enneagram 8 personalities. Type 8 INTPs additionally correspond to the Assertive INTP subtype because of their more assertive, confident personality.

INTPs with Enneatype 8 have two noteworthy strengths. Firstly, Type 8 Thinkers are highly ambitious, sometimes even displaying a desire for authority or responsibility which is unique among their personality type. Secondly, INTPs with Enneatype 8 exemplify the Thinker’s innovative mind, desiring to share their ideas and knowledge with the world. People with an INTP and Enneagram 8 personality additionally exhibit two main weaknesses. Firstly, the INTP Enneagram Type 8 can be stubborn, people with this personality type often believe they have the right answer. Secondly, Type 8 Thinkers are sometimes uncompromising because they hate being questioned or feeling incompetent.

Socially, INTPs with Enneatype 8 are better positioned for authority roles than other INTPs because they’re very determined and ambitious. However, others may find the INTP Enneagram Type 8 personality challenging as Type 8 Thinkers struggle to compromise if they think they’re right. One example of a stubborn Type 8 INTP is Ridley Scott, an American director with a reputation for being difficult to work with. Scott also has made innovative contributions to cinema, such as with the Alien and Bladerunner franchises. That said, he and other INTPs with Enneatype 8 don’t work well with others, whereas INTPs with Enneatype 1, 2, or 9 personalities can.

9. INTP Enneagram Type 9

The INTP Enneagram Type 9 is a subtype encompassing people with the Thinker and Enneagram Type 9 personalities. INTPs with Enneatype 9 have peacemaker qualities and a rational mindset which aligns with the INTP-A (Assertive) subtype.

People with an INTP Enneagram Type 9 personality demonstrate two main strengths. Firstly, Type 9 Thinkers excel at seeing the big picture. Secondly, INTPs under Enneagram 9 are highly creative due to an enhanced cognitive Extroverted Intuition (Ne) function. Thinkers with a Type 9 Enneagram personality also exhibit two noteworthy weaknesses. Firstly, INTPs with Enneatype 9 are highly non-confrontational—primarily because they’re introverts who aren’t interested in debating. Secondly, INTPs with Enneatype 9 are overly preoccupied with keeping the peace which may keep these Thinkers from speaking their minds.

Being Thinking (T) dominant individuals, INTPTs do not generally act as peacemakers or mediators. INTPs with Enneatype 9 stand out because they’re mindful of conflicts, much like Type 6 Thinkers. Socially, Type 9 INTPs are not necessarily more empathetic than other INTP enneatypes but they do understand the rationale of keeping the peace. Famous INTPs like Abraham Lincoln similarly understood the importance of peace and stability. President Lincoln exhibited both INTP and Enneagram 9 characteristics through his tempered, rational leadership during the American Civil War and the absolution of slavery.

How are INTP Enneagram types classified?

The INTP Enneagram types are classified by the MBTI and Enneagram of Personality methodologies, which are two separate systems. The MBTI administers a test to classify whether an individual shows a propensity for one of two functions across four dichotomies—Extroversion (E) versus Introversion (I), Sensing (S) versus iNtuition (N), Thinking (T) versus Feeling (F), and Judging (J) versus Perceiving (P). Individuals who test as INTP primarily exhibit Introversion, iNtuition, Thinking and Perceiving traits.

The Enneagram also utilizes a test to classify personality. However, the Enneagram does not determine personality by double-edged measures like the MBTI’s psychological dichotomies. Instead, the Enneagram analyzes and sorts personality according to shared beliefs, motivations, and fears. Test takers will test for one of nine types (sometimes called “enneatypes”), whereas the MBTI provides sixteen.

To identify your INTP Enneagram, first, take the MBTI test to confirm your INTP personality. After which, take the Enneagram of Personality test to identify your Enneagram type as an INTP.

How are INTP Enneagram types found?

The INTP Enneagram types were found by comparing the MBTI and Enneagram of Personality systems. Third-party individuals are responsible for this approach since the MBTI and Enneagram have separate applications and creators. The MBTI was created by Katharine Cook Briggs and her daughter Isabel Briggs Myers. Meanwhile, the Enneagram originates from the theories of Oscar Ichzao and Claudio Naranjo, though it has greatly transformed over the decades. We can define the INTP Enneagram as a combination of Briggs-Myers’ methodology and Ichzao and Naranjo’s ideas. Doing so provides us with a more nuanced assessment of the Thinker personality type and the nine unique subtypes it may have under the Enneagram.

Do INTP Enneagram types change according to gender?

There is no evidence to suggest INTP Enneagram types change according to gender because there has not been in-depth research into the subject. There is a significant disparity between men and women with the INTP personality, however. Studies show that INTP men are significantly more common, accounting for 10.1% of the general population while women make up only 3.2%.

Can someone change their character from one INTP Enneagram type to another?

It may be possible for someone to change their character from one INTP Enneagram type to another. Although presiding theories for MBTI and Enneagram suggest personality is fixed and cannot change, studies suggest personality change is feasible.

Professors R. Chris Fraley and Nathan Hudson from the University of Illinois found that participants saw changes in self-reported traits after a sixteen-week period of voluntary improvement. It’s important to note professors used the Big 5 personality test to define the traits participants wanted to change. The Big 5 is a separate system from the MBTI and Enneagram. Furthermore, Fraley and Hudson noted that the timeframe may be insufficient for permanent personality changes, but the results suggest it is possible to change your character.

Professors Wiebke Bleidorn, Christopher Hopwood, and their thirteen co-authors expressed similar sentiments in a study from the University of California. The study suggests well-timed intervention at the right age can facilitate changes in personality traits, which may act as a way to predict success and define policy targets.

As neither study employed the MBTI or Enneagram systems, we can’t assess whether someone can change their INTP Enneagram type. However, we can infer personality changes are generally possible.

Can someone be from multiple INTP Enneagram types?

No, someone cannot be multiple INTP Enneagram types but they may display traits of their Enneagram wings. As the Enneagram of Personality presents personality on a nine-pointed model, each enneatype has two neighboring personalities called wings. Individuals may express traits of their Enneagram wings, but the characteristics of their primary enneatype remain dominant. Likewise, INTPs may change their Assertive or Turbulent designation by improving their self-confidence and changing how they interact with others, but they will continue to express the core INTP traits, physiological dichotomies, and cognitive functions.

What are the main Enneagram types of INTP?

The main Enneagram type of INTP is Enneatype 5 according to research from Typology Central. Data shows that 68 to 74% of INTP users identify with the Enneagram 5 personality, followed by 8% and 6% testing as Enneagram Type 4 and Type 6, respectively.

The INTP Enneagram Types collectively retain their core characteristics and cognitive functions, but exhibit heightened or dampened traits. The INTP Enneagram Types additionally have differing motivations and self-perceptions according to the Enneagram of Personality’s typology. An INTP Enneagram type test is necessary to fully gauge the subtle difference between the main Enneagram types of INTP. We’ve inferred their most notable traits in the list below.

  • INTP Type 5s are emotionally distant, but stand out from the main Enneagram INTP types due to their strong independent, analytical, and investigative qualities.
  • INTP Type 4s are very critical and have a keen sense of judgment, which is typical of Thinkers. The Type 4 INTPs’ most notable difference is their occasional envious tendencies, which is unique among Thinker types.
  • INTP Type 6s differ from other INTP Type 5 and 4 by being cautious, distrustful, and skeptical. Strong observation skills additionally define INTP Enneagram Type 6.

What is the INTP-A (Assertive)?

The INTP-A (Assertive) is one of the main subtypes of the Thinker personality. Assertive Thinkers share the same core traits, cognitive functions, and psychological dichotomies as their counterparts, INTP-T (Turbulent). What sets Assertive Thinkers apart from INTP-T is their innate confidence and social independence. People with INTP-A personalities are generally less concerned with fitting and more interested in their own passions.

The INTP Enneagram types 1, 2, 5, 8, and 9 are all Assertive INTPs because they display common features of the subtypes. Thinkers with a 1, 2, 5, 8, or 9 enneatype are highly independent, exemplifying the Thinker’s natural reservation by valuing their pursuits over family and friends. These Assertive INTPs are inclined to follow through with their work duties because they’re confident in their problem-solving abilities. Consequently, Assertive Thinkers may be stubborn and refuse to ask coworkers or friends for help because they’re so confident. Additionally, INTP-As’ self-confidence means they’re less susceptible to peer pressure—maintaining a small circle of trusted connections they sometimes neglect.

What are the key characteristics of INTP-A?

Below are the key characteristics of INTP-A.

  • Analytical thinking: All Thinkers show a strong predisposition for analytical thinking due to their dominant Introverted Thinking (Ti) function, but INTP-As are less inclined to doubt their logic. Assertive Thinkers channel their analytical sense into expert problem-solving.
  • Independence: INTP-As are socially independent, preferring a small circle of friends and avoiding outside influence to better focus on their pursuits.
  • Consistency: Thinkers tend to be spontaneous because of their Perceiving (P) function, but INTP-As are notably more consistent. INTP-As can take action and consistently follow through because they trust themselves.
  • Stubbornness: INTP-As are not inflexible due to their Perceiving (P) trait, but they can be stubborn and unfeeling as they often they’re in the right.
  • Emotional distance: Thinkers are generally reserved. INTP-As are particularly emotionally distant because they tend to prioritize their pursuits over the emotional needs of friends and family

The two most prominent INTP-A characteristics from the list above are independence and emotional distance. These characteristics stand out from the MBTI’s classification of the Thinker personality because they demonstrate how different INTP-As are from their counterpart, INTP-T. All Thinkers share the same traits but express them differently. By being more independent and emotionally distant than Turbulent Thinkers, Assertive INTPs exemplify the subtle distinctions of individual INTPs.

What is the INTP-T (Turbulent)?

The INTP-T (Turbulent) is the second main subtype of the Thinker personality. INTP-Ts’ counterpart is INTP-A or the Assertive Thinker. The two subtypes exhibit the same core characteristics, but Turbulent Thinkers view themselves and the world around them differently. For example, Turbulent INTPs are more self-conscious and sensitive, displaying less confidence than INTP-As. People with an INTP-T personality also have unique strengths that INTP-As don’t, such as increased emotional intelligence and flexible problem-solving.

In addition, Turbulent Thinkers do not share the same enneatypes. Only INTPs with Enneagram types 3, 4, 6, and 7 generally display Turbulent features. Due to their enneatypes and Turbulent characteristics, INTP-Ts are susceptible to peer pressure and want to be known as the problem-solvers within their social circles or workplaces. Consequently, Turbulent INTPs tend to be more attached to their friends and family than INTP-As. Turbulent INTPs are also more in touch with their inferior function, Extroverted Feeling (Fe), leading to better communication skills, flexible problem-solving, and indecisiveness.

What are the key characteristics of INTP-T?

Below are the characteristics of INTP-T.

  • Self-consciousness: Turbulent Thinkers are quicker to self-criticize, leading to feelings of self-consciousness and a tendency to seek approval from others
  • Conflict aversion: Since INTPs rely on logical thinking, Turbulent Thinkers may be quicker to avoid conflict than INTP-As who are inherently more confident.
  • Flexibility: Thinkers have a propensity for spontaneity as Perceiving-type personalities. INTP-Ts exemplify this fact through their more flexible problem-solving skills.
  • Indecisiveness: Just as INTP-Ts are more flexible, they’re also more indecisive—second-guessing their ideas and abilities.
  • Emotional intelligence: Turbulent Thinkers are reserved but demonstrate a connection to their interior Fe function. As a result, INTP-Ts display stronger emotional intelligence and communication skills than their counterparts.

Two books highlight prominent INTP-T traits of conflict aversion and flexibility, respectively. First, Creative You: Using Your Personality Type to Thrive by David B. Goldstein and Otto Kroeger point out INTPs’ non-confrontational nature in work teams, detailing how INTPs deal with conflict by being noncommutative or avoiding conflict entirely unless necessary. Goldstein and Kroeger’s assessment aligns with INTP-Ts’ particular conflict aversion, which stems from their lack of confidence. Second, the authors of Quick Guide to the 16 Personality Types and Teams make note of INTPs’ flexibility—describing INTPs as theoretical and flexible types whose greatest strength derives from objective and logical analysis. Turbulent INTPs particularly exemplify the Thinker’s flexibility by being more open and commutative for the sake of problem-solving.

How are INTP Enneagram types analyzed with INTP Enneagram?

The INTP Enneagram types are analyzed with INTP Enneagram by utilizing the two main typologies, Enneagram of Personality and Myers-Briggs Type Indicator (MBTI). The Enneagram categorizes human traits into nine personality types whereas the MBTI defines sixteen, including INTP. As the Enneagram and MBTI are separate systems, individuals who test as INTP will have separate results under the Enneagram. We’ve analyzed INTP Enneagram types according to the core Thinker characteristics and how they may present or deviate under the Enneagram’s assessment. Our analysis leads to nine unique INTP Enneagram types.

We’ve further inferred which INTP Enneagram types display INTP-T or INTP-A characteristics. INTP Enneagram Type 1, 2, 5, 8, and 9 demonstrate Assertive qualities. Meanwhile, INTP Enneagram Type 3, 4, 6, and 7 exhibit Turbulent traits.

How does MBTI interpret INTP Enneagram type with the help of Enneagram?

The MBTI doesn’t officially interpret INTP Enneagram types with the help of the Enneagram because they’re separate personality systems. The MBTI uses four psychological dichotomies of opposing functions to categorize personality. The Enneagram does not. That said, the Enneagram types present overlapping characteristics with MBTI personalities like INTP. A study from Typology Central shows that INTPs tend to test as Enneagram Type 5, highlighting a commonality between the personality types. We’ve further interpreted how the Thinker personality may present under the Enneagram types by analyzing their respective typologies.

Third-party experts have also explored the complementary uses of the MBTI and Enneagram system. Managing Psychological Factors in Information Systems Work by Eugene Kaluzniacky touches on the MBTI and Enneagram, and their applications in IT. Similarly, psychotherapist Pat Wyman shares her insights on using the MBTI and Enneagram in her book, Three Keys to Self-Understanding.

Comparison of INTP-T and INTP-A

Below is a table comparison of INTP-T and INTP-A.

INTP Enneagram typeINTP-A (Assertive)INTP-T (Turbulent)
Stress ManagementINTPs generally find socializing stressful, so they manage stress by avoiding large gatherings and living independently.INTP-Ts are more prone to stress because they seek approval from others, which requires socializing. Turbulent INTPs manage stress by avoiding confrontation.
Business LifeIn business life, INTP-As prefer to work alone. Employees can expect INTP-As to be consistent if reluctant to ask for help.In business life, INTP-Ts also prefer to work alone. INTP-Ts are less confident but more flexible because they crave approval in the workplace.
Social LifeAssertive INTPs are largely independent in their social life. INTP-As prefer a close circle of friends but may maintain an emotional distance.Turbulent INTPs prefer to be independent in their social life, but they’re sensitive to others’ opinions of them and thus susceptible to outside influences. INTP-Ts are also more willing to ask for help from loved ones.
RelationshipsINTP-As take relationships seriously as long as they can maintain their independence. Partners may find an INTP-A’s emotional distance troubling, however.INTP-Ts in relationships exhibit greater reliance on their partners. INTP-Ts also demonstrate stronger communication skills than INTP-As.
BehaviorsINTP-As behave confidently and analytically. Assertive Thinkers stick to themselves and are quicker to take action.INTP-Ts behave with less confidence. Turbulent Thinkers are also more self-critical and second guess their actions.
StrengthsStrengths of INTP-As include independence, consistency, and analytical thinking.Strengths of INTP-Ts include emotional intelligence and flexibility.
WeaknessesWeaknesses of INTP-As include stubbornness and being emotionally distant.Weaknesses of INTP-Ts include a lack of self-confidence, self-consciousness, and indecisiveness.

As a deeply introverted personality type, socializing and forming connections are major stressors for INTPs. The table above demonstrates how Assertive and Turbulent INTPs cope with stress in two separate ways. First, INTP-As deal with stress by being independent and avoiding socializing. INTP-As are also less prone to stress before they’re inherently more confident and less reliant on others. Second, INTP-Ts deal with stress by avoiding confrontation and being self-critical. Turbulent INTPs are more susceptible to stress because they lack confidence and desire approval from others.

Which INTP Enneagram Type is better for relationships?

The INTP Enneagram type that is better for relationships varies between two subtypes. First, Thinkers with Enneatype 2 may be caring romantic partners because they’re dutiful and want to help others. Type 2 INTPs can misread or disregard their partner’s boundaries because of their analytical mind, but ultimately they only want what’s best. Second, Thinkers with Enneatype 3 can be great partners because they’re more in touch with their inferior Extroverted Feeling (Fe) function. Type 3 INTPs will have an easier time communicating with others, though they may be callous or rash. On the other hand, INTP subtypes like Type 5 Thinkers are the least suited for relationships because they’re emotionally distant and prefer to focus on their own goals.

Which INTP Enneagram Type is better for family life?

The INTP Enneagram type that is better for family life varies between two subtypes. First, Type 2 Thinkers may be comfortable with familial responsibilities because they’re dutiful and value intimate connections. Second, Type 1 INTPs may be better at family life because they’re great problem solvers and would help resolve family issues. With that said, any INTP subtype can be well-suited for family life. Family life ultimately depends on the individual INTP. Thinkers with Enneatype 2 or 1 stand out because they typically don’t put their goals over the needs of loved ones.

Which INTP Enneagram Type is better for sensitive people?

None of the INTP Enneagram types are better for sensitive people. The Thinker subtype is dominated by the Thinking (T) function, so they’re uncomfortable with and sometimes even callous about sensitive situations. Thinkers with Enneatype 2 or 3 may handle sensitive people better because they’re more in touch with their inferior Extroverted Feeling (Fe) function. However, Type 2 INTPs tend to lack boundaries and act overly assertive which may upset sensitive people. Type 3 Thinkers likewise may come off negatively as they tend to act or think superficially.

Which INTP Enneagram Type is more confident?

The most confident INTP Enneagram type varies between two Assertive INTP subtypes. First, Type 8 INTPs are confident because of their innate ambition. These Thinkers pursue their innovative ideas and take on new responsibilities, whereas other INTPs tend to hesitate. Second, Type 5 INTPs are confident because of their independence. Type 5 Thinkers exemplify the best of the INTP personality as they’re deeply focused on their goals. The least confident INTP Enneagram Type varies between any of the INTP enneatypes with Turbulent qualities. INTP Enneagram Type 3, 4, 6, and 7 all exhibit Turbulent characteristics and therefore may be prone to low self-confidence.

Which INTP Enneagram Type is better for a career?

None of the INTP Enneagram types are better for a career because any Thinker can succeed professionally, regardless of their enneatype. That said, the four INTP Enneagram types listed below possess notable strengths that may make them better equipped for the workplace.

  • INTP Enneagram Type 4: Thinkers with Enneatype 4 are decisive and have a good sense of judgment. Professionally, Type 4 INTPs may use their strengths to make effective decisions.
  • INTP Enneagram Type 5: Thinkers with an Enneagram 5 personality may excel professionally because they’re independent and exemplify the Thinker’s analytical mindset. Employers can expect Type 5 INTPs to be passionate about complex ideas and require minimal oversight.
  • INTP Enneagram Type 7: INTPs with an Enneagram 7 subtype are goal-focused and enterprising—two traits that are invaluable in any workplace.
  • INTP Enneagram Type 8: Thinkers with Enneatype 8 are among the most ambitious. Therefore, Type 8 INTPs are motivated to succeed if they’re in a career field they care about.

Which INTP Enneagram Type is better for teamwork?

The INTP Enneagram Type that’s better for teamwork varies between the three subtypes listed below.

  • INTP Enneagram Type 1: Thinkers with Enneatype 1 have strong problem-solving skills which they can use to help their team navigate challenges.
  • INTP Enneagram Type 6: Type 6 Thinkers’ tendency for thoroughness can prove vital for team-based workspaces.
  • INTP Enneagram Type 9: The big–picture thinking and peacemaking mindset of Type 9 INTPs can help teams stay on track and mitigate conflicts.

Thinkers generally prefer to work alone and the INTP subtypes listed above are no exceptions. That said, INTPs with Enneatype 1, 6, or 9 demonstrate characteristics that make them better suited if not totally efficient at teamwork.

Which INTP Enneagram Type is better for artists?

The INTP Enneagram Type 9 is better for artists because they’re more in tune with the creative side. Thinkers are generally attracted to analytical or logical pursuits, but one of their main strengths is a vivid sense of imagination. Type 9 INTPs express the Thinker’s innate imagination more strongly because their auxiliary Extraverted Intuition (Ne) function is enhanced. Type 9 Thinkers are consequently more drawn to abstract ideas which they may express through art. Since imagination is a major INTP trait, none of the other INTP Enneagram types are necessarily poorly suited for art. However, art remains an uncommon career path for INTPs.

Which INTP Enneagram Type has a rare personality?

There is limited evidence to confirm which INTP Enneagram Type has a rare personality. User-gathered data on the correlation between Enneagram and MBTI systems show that only 2% of INTPs identify with Enneatype 1, 2, and 8, respectively. This data suggests Thinkers with Enneatype 1, 2, and 8 are rare personalities or at least uncommon Enneagram-MBTI combinations.

Which INTP Enneagram Type has a pet peeve?

All INTP Enneagram types may have pet peeves since pet peeves are unique to individuals. Some possible pet peeves for INTP types include illogical arguments (straw-man arguments) or people disrespecting their space. INTPs value logical thought so straw-man arguments would try their patience. INTPs likewise treasure their alone time since they’re introverts, so disrespect for their boundaries would naturally upset them.

INTPs may also have pet peeves associated with their enneatype. For example, INTP with Enneatype 1 may find someone’s laziness or incompetence annoying since Type 1 INTPs display perfectionist tendencies. Similarly, selfishness could be a pet peeve for Type 2 INTPs since they’re dutiful and clash with self-centered people.

Who are the famous people with INTP Enneagram types?

Below is a list of famous people and their INTP Enneagram types.

  • INTP Enneagram Type 1: German philosopher Immanuel Kant and American actress Troian Bellisario display an INTP Enneagram Type 1 personality. Immanuel Kant was a highly ethical, comprehensive Thinker who created new philosophies. Meanwhile, Troian Bellisario grew up trying to attain perfection as Type 1 INTPs tend to do. She also displays the reserved and rational qualities of the Thinker by being a diligent but private actress.
  • INTP Enneagram Type 2: American actress Meryl Streep is one of the few celebrities with an INTP Enneagram Type 2 personality. Streep displays INTP characteristics like passion, reservation, and a vivid sense of imagination through her extensive career and private lifestyle. Mery Streep shows her Enneatype 2 side by using her platform to help others and criticize those in power.
  • INTP Enneagram Type 3: Actors John Malkovich and Navid Mohammadzadeh show traits of the INTP Enneagram Type 3 personality. Both appear to be extroverts due to Enneatype 3’s outspokenness. However, Malkovich maintains a quiet personal life and a meticulous approach to acting. Meanwhile, Mohammadzadeh shows his INTP analytical mindset through his civil engineering career.
  • INTP Enneagram Type 4: British actor Martin Freeman and American comedian-musician Bo Burnham align with Enneatype 4 Thinker because they’re both decisive if at times self-critical individualists. Bo Burnham is passionate about his pursuits like other INTPs and displays his Enneatype 4 traits through his self-deprecating projects. Martin Freeman has also remarked on his flaws but is goal-focused and decisive with his projects like Burnham.
  • INTP Enneagram Type 5: Albert Einstein and Marie Curie exemplify the INTP and Enneagram 5 personalities through their immense contributions to science. Both Curie and Einstein displayed traits like vivid imagination, analytical thinking, and emotionally distant tendencies.
  • INTP Enneagram Type 6: Acclaimed polymaths Galileo Galilei and Bernard Bolzano exhibited INTP Enneatype 6 characteristics. They showed an innate skepticism by questioning existing theories and challenging the Catholic Church. Galileo and Bolzano also demonstrated strong observation skills and thoroughness in their respective fields.
  • INTP Enneagram Type 7: Felix Kjellberg, better known as PewDiePie, is a rare example of an INTP with Enneagram 7 traits. Kjellberg is a goal-focused, enterprising figure among internet personalities. Kjellberg also shows INTP Enneagram Type 7 through his rash actions and numerous controversies.
  • INTP Enneagram Type 8: American director Ridley Scott and actor Chevy Chase are prime examples of Type 8 Thinkers. They both have stubborn, uncompromising qualities that make Scott and Chase difficult to work with. Likewise, both are ambitious as evidenced by their exceptional contributions to films—Scott through his sci-fi film franchises and Chase through his comedy persona.
  • INTP Enneagram Type 9: President Abraham Lincoln and Irish philosopher George Berkeley were both Type 9 INTPS. Abraham Lincoln saw the big picture during some of the United States’ most tumultuous periods. He sought peace and stability. Meanwhile, George Berkeley demonstrated Enneatype 9’s creativity and broad imagination by developing subjective immaterialism (the philosophical idea that our minds and thoughts exist).

How to understand which INTP subtype you are?

To understand which INTP subtype you are, follow the three steps below.

  1. Take the Myers-Briggs Type Indicator (MBTI) test: The MBTI test will test your personality type as an INTP and provide in-depth knowledge of your traits and cognitive functions. Some tests will also tell you whether you’re an Assertive or Turbulent personality.
  2. Take the Enneagram of Personality test: After completing the MBTI test, take the Enneagram to narrow down your INTP Enneagram subtype. Most INTPs are assigned the Enneagram Type Five personality, but you may receive different results depending on your core motivations and fears.
  3. Assess your MBTI and Enneagram results: You should compare the results of both tests to better understand your INTP Enneagram type. Review the descriptions of your assigned personalities and see if they align. Consider retaking either test if you feel the results do not accurately capture your personality.

INTP Enneagram type quiz example

The INTP Enneagram type quiz example below attempts to demonstrate how we can apply the MBTI and Enneagram so Thinkers can find their Enneagram subtype.

  1. I value investigative thinking: Type 5 INTPs approach a problem with an analytical eye because they exemplify the Thinker’s inquisitive side. If you relate to this trait, then a positive reply suggests you’re a Thinker with Enneatype 5 qualities.
  2. I’m sometimes guilty of being a perfectionist: Thinkers with Enneatype 1 are comprehensive problem-solvers who maintain high standards because they want to execute solutions perfectly. A positive reply to this question signifies an INTP Enneagram Type 1 personality.
  3. I question the world around me: INTPs with Enneatype 6 are naturally skeptical due to their distrusting nature. Whether you use your skeptical side to anticipate the worst or challenge long-held beliefs, answering yes here is indicative of an INTP Enneagram Type 6 personality.
  4. I want recognition for my achievements: INTPs with Enneatype 3 aren’t shy about their desire to achieve, much less their vanity and occasionally superficial thinking. An affirmative response suggests the testee likely has an INTP Enneagram Type 3 personality.
  5. I’m stubborn and uncompromising in a debate: INTPs with Enneatype 8 trust their logic and believe they’re in the right during debates, which others say is a mark of stubbornness. A positive answer to this question suggests you’re a Type 8 INTP.
  6. I want to stand out but I’m insecure: Type 4 INTPs exhibit several Turbulent qualities, including a lack of self-confidence. Thinkers with Enneatype 4 nonetheless strive to be individualistic. An affirmative reply here leans towards an INTP Enneagram Type 4 result.
  7. I sometimes overstep while trying to help others: Thinkers with Enneatype 2 use their intellect and skills of observation to help others. However, the Thinking (T) dominant personality may cause Type 2 INTPs to overstep and offend emotional boundaries. Answering positively here signifies an INTP Enneagram Type 2 personality.
  8. I try to keep the peace, but I prefer to avoid conflict: Type 9 INTPs aren’t as interested in debating as other INTP subtypes. Instead, Thinkers with Enneatype 9 prefer to avoid conflict for the sake of peace and stability. An affirmative reply to this question is indicative of INTP Enneagram Type 9 traits.
  9. I deeply value my independence: All Thinkers are introverts at heart, but Type 5 INTPs are often emotionally distant because their intellectual pursuits require independence. If you’re a Thinker type with a strong independent streak, then a positive response suggests you have Enneatype 5 qualities.
  10. I describe myself as enterprising: Type 7 Thinkers are among the most outgoing INTP subtypes because they strive to promote their ideas and live a forward-thinking life. If you’re a goal-focused Thinker, then you possibly have an INTP Enneagram Type 7 personality.

How can INTP Enneagram types develop themselves?

The INTP Enneagram types can develop themselves by working on their weaknesses. Each INTP enneatype shares the same fundamental traits associated with the Thinker personality type. Therefore, INTPs can work on the characteristics that the MBTI defines. Some INTP Enneagram types also appear to express their fundamental weakness more strongly due to their enneatype. Alternatively, INTPs can develop the traits associated with their enneatype (such as perfectionism in the case of Type 1 Thinkers).

Below is a list of six methods Thinkers can use to develop themselves according to their MBTI and enneatype-specific traits.

  • Open up about self-criticism: Thinkers are sometimes overly critical, be it of themselves or others. INTP Enneagram Type 1, Type 4, and Type 5 strongly exhibit self-criticism. These INTP Enneatypes can develop themselves by challenging their inner voice and opening up to others. Sharing what they don’t like about themselves can help Thinkers get out of their heads and gain a new perspective on their apparent shortcomings.
  • Balance indecisiveness: All INTPs can be indecisive, but INTPs with Enneatype 1 are particularly so due to their perfectionism. Type 1 INTPs will languish over decisions because of their high standards and controlling nature. To combat indecisiveness and develop themselves, Thinkers with an Enneatype 1 personality should try to delegate tasks to people they trust or take on a lighter workload. It may be difficult at first, but the less work they take on, the less time Type 1 INTPs will spend overthinking a decision.
  • Bridge emotional distance: Thinker types are reserved and emotionally distant due to their Introversion (I) and Thinking (T) functions. Thinkers with Enneatype 5 particularly exemplify the Thinker’s emotional distance, which may prove troubling for their close relationships. Type 5 INTPs can develop themselves by learning how to prioritize others’ emotional needs and communicating more. It’s a major step out of their comfort zone, but Type 5 INTPs may end up isolating themselves if they don’t communicate.
  • Be less judgemental of others: Thinkers may harshly judge others because they often believe they’re right. Thinkers with Enneatype 2, 4, 3, and 7 are particularly guilty of being judgemental due to their respective traits. These kinds of Thinkers can develop themselves in the following three ways. First, Type 2 INTPs need to consider people’s boundaries before helping without asking. Second, Type 7 INTP should address their callousness and how it hurts others. And third, Type 3 and Type 4 INTPs should evaluate how their vanity and envy influence how they judge others, respectively. Doing so will help these INTPs improve their relationships.
  • Work on inflexible thinking: Thinkers are not typically inflexible because their Perceiving (P) function values spontaneity. That said, INTPs with Enneatype 8 can be stubborn and uncompromising due to their assertive personality. Type 8 INTPs can work on themselves by taking a step back and considering others’ opinions. Since they’re ambitious, Type 8 INTPs may prioritize their success over others. However, it’s important to remember that you’re more likely to succeed if you have people’s support—which starts by respecting their viewpoint.
  • Be more confrontational: INTPs may avoid confrontation because they’re reserved and dislike emotionally intense situations. Type 9 INTPs are especially nonconfrontational because they want to keep the peace. Type 9 INTPs can develop themselves by relying on their analytical thinking more. Doing so can help Type 9 Thinkers realize that confrontation is sometimes the most logical, rational thing to do (even if at the cost of peace).

Who are the famous experts for the INTP Enneagram type?

There are no famous experts for the INTP Enneagram types because INTP and enneatypes belong to two separate personality systems. Third-party experts like psychotherapist Pat Wyman have explored complementary uses of the MBTI and Enneagram because they have similar applications. However, no notable academics have researched INTP Enneagram types specifically.

What other personality Enneagram types are close to INTP Enneagram types?

The other personality Enneagram types that are close to INTP Enneagram types include INTJs, INFPs, and ENTPs. The nine INTP enneatypes relate to INTJ, INFP, and ENTP people differently as the list below describes.

  • INTJ personalities: INTJs are close Thinkers with Enneatype 5 and Enneatype 1 personalities for two distinct reasons. First, INTJs and Type 5 INTPs are both highly independent, analytical individuals who put their logical passions above other priorities. Second, both INTJ people and Type 1 Thinkers display perfectionistic tendencies, which is a major weakness for the two.
  • INFP personalities: INFPs are close to INTP Enneagram Type 2, Type 6, and Type 9 for the following three reasons. First, Type 2 Thinkers share the INFP’s sense of compassion, both finding value in helping others. Second, INFPs and Type 6 INTPs are similar because they’re both willing to challenge long-held beliefs. INFPs do so out of idealism while Type 6 Thinkers do so for the sake of science. And third, INFPs are close to Type 9 INTPs because they both value peace and stability due to their similar worldviews.
  • ENTP personalities: ENTPs are close to INTPs with Enneatype 3, Enneatype 4, Enneatype 7, and Enneatype 8 for three notable reasons. First, ENTPs share the Type 3 Thinker’s outspokenness. The only difference is that ENTPs are naturally extroverted while Type 3 INTPs are not. Second, ENTPs and Type 4 INTPs are similar because they’re both inquisitive people with a judgemental eye. And third, ENTPs are close to Type 7 and Type 8 Thinkers because they all value innovative thinking. Type 8 INTPs are ambitious while Type 7 Thinkers are goal-focused, which aligns with ENTPs’ fearless sense of innovation.