INTJ Functional Stack (the four functions)

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In this complete guide, we will be discussing: INTJ Functional Stack. Starting with a brief introduction about the INTJ personality type and their unique traits, we will be moving towards the INTJ functional stack and their type of development in correspondence to the ordering of the function stack.

INTJ Functional Stack

The functional stack of the personality type INTJ comprises of the four functions which are as follows:

  • Intuition – introverted intuition
  • Thinking – extraverted thinking
  • Feeling – introverted feeling
  • Sensing – extraverted sensing

The relative strength of these functions in expressed int the following manner;

  • Dominant
  • Auxiliary
  • Tertiary
  • Inferior

The INTJ personality type

The intj personality type is also known as the ‘mastermind’ and these types can’t help but notice the bigger picture. They are highly observing and can interconnect what they observe in a fast period. Deep perception is the type’s signature strength. Their ability to understand deep patterns and causal relationships have contributed greatly to the field of science, medicine, mathematics, and other fields of career. 

The dominant function of this personality type is introverted intuition even if they are classified as the thinking types. Their model of operation can be described as impressionistic. They don’t notice the irrelevant details in their environment and their existence can seem like cerebral or a dream. This can also make them feel isolated from their physical surroundings and sometimes even their bodies.

People with this personality type are easily labeled as awkward, nerdy, quirky, and oblivious. These types mostly enjoy living in their own mental space, oblivious to the practical side of things.  They are absorbed in their interests and affairs. Though these types are book smart they tend to fall short when they have to be street smart. 

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INTJ’s can accept the characteristic differences they possess from their countertypes and to joke about their nerdy nature. Fortunately, they are also able to find friends with mutual interests though they might be overlapping. These types despise unfamiliar social situations and do not like to engage in small talk. This further aggravates the feeling of being distinct from other personality types.

INTJ personality traits

These types have a reputation for being ‘walking encyclopedias’. They are like a sponge that absorbs information, be it of any nature, including historical, scientific, technical, or otherwise. 

They have photographic memories and they recall anything and everything they are exposed to. 

They have a good power of insight and vast stores of factual knowledge. They tend to share their knowledge with others and they connect with others through the dispensation of ideas and information. They enjoy opportunities to use their typological strengths and enlighten others. 

Despite their introverted nature, INTJ’s can be very talkative and interactive if the topic of discussion is of their interest and liking. For the same reason, they highly enjoy the role of a professor or lecturer. They are good orators and also know how to chip in humor to their conversations, which might otherwise feel dry and mechanical. 

The functional stack

The INTJ Functional Stack is as given below:

  • Introverted intuition
  • Extraverted thinking
  • Introverted feeling
  • Extraverted sensing

Introverted intuition (dominant function)

The dominant function of INTJ’s is introverted intuition. Though they possess the ability to think and judge rationally, they tend to initially process the information in less rational ways. 

Intuition is described or understood as an unconscious way of knowing things and for INTJ’s intuition is considered as the most conscious function. Though the workings and products of intuition are readily available for INTJ’s, intuition is a perceiving function which sometimes cannot be controlled. 

The healthy way of processing information and solving problems is to keep a balance between the involvement of the intuition function and rational thinking. This will enable a wholesome and comprehensive way of looking at the problems at hand. 

Owing to the precision and insight of the intuition function, sometimes it can come across as magical or supernatural. The INTJ’s extraverted function of sensing tends to unconsciously collect a vast amount of information from the outside world and forwards it to the intuition function which tires to assemble it like a puzzle. Eventually, an impression is formed that reveals the deeper reality of the data. 

Extraverted thinking (auxiliary function)

INTJ’s auxiliary function is extraverted thinking which is controlled by the left brain. The left hemisphere of the brain is logical, abstract, analytical, and systematic. It breaks down information into its constituent parts, names those parts, explicates their functions, and determines their relationship to other parts. 

This approach also gives importance to quantification and the establishment of measurable goals and standards. The ultimate goal is to render things logically and make them more open to human manipulation, prediction, and control. 

The thinking function of INTJ’s plays the role of a servant than that of a master and its main function is to flush out unwanted intuitions. Once an intuition is formed, the thinking function takes over to give it a rational form. This transition of intuitions into diagrams, symbols, and formulae is important as it helps others to decipher the insights formed by INTJ’s. 

INTJ’s are always careful to pay attention to the important details of any kind of information while explicating intuitions and the way things are ordered. They are perfectionists who try to ensure that their work follows a linear or logical sequencing. They also work immensely hard to include facts, data, and other objective considerations for better understanding. With all this kept in mind, they always try to stick to their foundational intuition.

Introverted feeling (tertiary function)

The tertiary function of INTJ is introverted feeling. It would be a mistake to assume that INTJ’s are emotionless robots. They do tend to experience intense emotions and feelings about their external environment. However, their emotions and feelings mostly get lost in translation by their thinking function. This is also because these types tend to extravert thinking instead of extravert feelings. 

This is the main reason why INTJs show little interest in social networking. They tend to remain close with their family members and one or two close friends whom they find comfortable and of the same wavelength. They are loyal and committed partners as well and devoted to the well-being of their children uncompromisingly. 

Concerning career, INTJs are passionate about working towards social reforms in areas of business, politics, economics, education, or otherwise. They are highly sensitive to any form of injustice they come across in their society, especially towards those people who are perceived to be lacking the ability to defend themselves such as the elderly, children, and street animals. 

INTJs pair up their intense feelings with their highly powerful intuitions and thinking capacity to come to logical and strategic ways to work towards a just and equitable world. 

Some INTJs are emotionally labile and dependent on others for emotional assistance to an extent, while some others are comparatively emotionally independent and stable. 

Extraverted sensing (inferior function)

The inferior function of INTJs is extraverted sensing. They have a love-hate relationship with this function as their ability to sense the concrete details and elements in their environment is less attuned and developed, compared to the other three functions. 

Though these types can absorb sensory information from their environment, they immediately tend to analyze and process the information through their intuitive function. Hence, without registering the details as they are, they typically experience an intuitive synthesis of the information. They are rather oblivious to their surroundings.

Though INTJs are consciously oblivious to their environment, they still can absorb and subconsciously register a sufficient portion of their environmental stimuli. It would be wrong to say that they are insensitive to their physical world. 

The nervous systems of INTJs are highly permeable and sensitive to the environment. Thus, they passively absorb information, without conscious effort, and this permeability also makes them susceptible to overstimulation in loud and noisy surroundings. 

Due to their conscious disconnect from their world, many INTJs feel as if they are aliens or strangers in the world. They even feel estranged from their bodies. These types also like to try new drugs, foods, wine, or art. 


INTJs are die-hard perfectionists. They seek perfection in every work they pursue, disregarding how small or big the nature of the work is. Thoroughness and perseverance are two very important aspects of INTJs. They tend to clear out every minute imperfection that comes into their observation and find it difficult to move forward until certain matters are made right, in the way they want to see it. 

While most of the other types are content with being good enough in whatever they do, INTJs always strive to reach their standards of excellence, as much as possible.


In this article, we discussed: INTJ Functional Stack. We examined the primary nature and inherent traits that are possessed by people of INTJ personality type, the functional stack of INTJ, consisting of the four main functions of intuition, thinking, feeling, and sensing, and how these functions differ in their intensity and prominence in this type of personality. 

FAQs: INTJ Functional Stack

Can you be both infp and intj?

The relationship between infp and intj is intense and enthusiastic. It is that kind of relationship where loyalty runs deep and ideas branch out from different directions. Both types are passionate about ideas and ideals that are non-conforming and non-conventional. When together, they help in refining each other’s ideas and improvising them. 

Are intj’s playful?

Intj’s can be ridiculously fun, lighthearted, and playful. They are much less serious inwardly when compared to their outward appearance. The light and playful side of intj’s that are usually not exhibited in their normal behavior can be observed in their writings and on their social media profiles. 

What is the rarest personality type?

The rarest personality type among the sixteen types is INFJ. abbreviated as introversion, intuition, feeling, and judging, it accounts for only roughly about 1.5% of people taking the test. This data is according to data from Myers and Briggs Foundation. 

Are intj’s clingy?

Intj’s can be a bit clingy and cuddly with people they genuinely love. They look for a connection that runs deep and for close relationships where they can truly express themselves. In other ways, they look for security and protection in their relationships. Thus, they might become clingy and cuddly with people they love and provides a comfort zone. 

Why are INFJ’s so attractive?

INFJ’s are attractive because they are understanding and open-minded in general. They understand and accept all sides of a person, including the good and bad. They do anything to protect the ones they love and care for. 

Who do INFJ’s attract?

INFJ’s are naturally more attracted to ENFP’S. Although any two developed individuals can smoothly initiate and maintain a relationship, ENFP is the best partner for INFJ because the dominant function of introverted intuition that is inherent in INFJ’s is best matched with a personality type that is dominated by extraverted intuition as that of the ENFP.

Are INFJ’s good liars?

INFJ’s rarely lie. They like to speak out the truth most of the time and not bring about complications. Hence, they can be good liars if the need arises.  They spit out the facts without sugarcoating and for the same reason, they may seem distant and approachable. 


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