INFP: The shiest ones.
INTJs are typically very quiet and reserved unless they happen to meet someone who, like them, loves exploring theoretical concepts, analyzing possibilities, and dreaming up long-term goals. That said, they're not typically very verbal when it comes to discussing their feelings or people's personal lives.
When you hear the word introvert, you might think of someone who's shy or quiet and prefers to be alone. While that may be true for some introverts, there's much more to this personality type.
INFJs may seem shy at first, but they usually have a lot going on beneath the surface. They tend to follow their hunches to determine what to do next. However, they'll usually share their vision for the future only with the people they're closest to.
Probably the best that can be said is that it is easiest to make the case for the INFP, INTP, or ISTP as the most introverted personality type.
Type D personality is associated with social anxiety in the general population.
INTJ: One of The Rarest, Loneliest Personality Types [Introverts and Writing]
The ISFJ and Self-Acceptance
ISFJs ranked as having low self-acceptance according to the CPI™ tool. This may be largely because ISFJs are known for being cautious and careful, which may come across as self-doubting at times.
INTJs often hide their vulnerable or emotional side behind a mask of stoicism. They are the types to let their behavior speak for them, rather than put their feelings into words.
ISTP personality types are calm, efficient and productive, and are open to new opportunities. This introduction to the ISTP personality type, based on the Myers-Briggs® Step I personality assessment, can help ISTPs to understand how they interact with others, and what careers they might enjoy.
Sweetness is actually a deceptive metric for MBTI types. Outwardly, you can expect the Fe-types (xxFJ) to be very sweet. You can expect the xxTJ types (low Fi and even lower Fe) to be less sweet.
With that in mind, the three most feminine would be ESFJ, ISFJ, and ENFJ in that order. The most masculine would be ENTJ, ISTP, and ESTP in that order.
Statistically speaking, Assertive Virtuosos (ISTP-As), Architects (INTJ-As), and Logisticians (ISTJ-As) are the least likely to seek affection from everyone, while Turbulent Campaigners (ENFP-Ts) and Entertainers (ESFP-Ts) are the most likely.
INFJ is regarded as the most sensitive personality type. Some estimates suggest that 80 to 90% of people who test as INFJs also test as highly sensitive people, because the traits of the two overlap so much.
ESFJ: insecure
Most see ESFJs as social butterflies and the life of the party. While they do love to be around people, they also want to feel accepted. Even though they're typically gregarious and assertive, their lesser-known personal qualities include being perceptive and deeply insecure.
Emotionally detached: ISTPs are not well attuned to the emotional states of others, and they can sometimes be seen as cold, unfeeling, or insensitive. They also distance themselves from their own emotions, ignoring their feelings until they become overwhelming.
Of all the personality types, ENTJs are arguably the ones who care least about other people's opinions of them.
The ISFP – Being Their Own Worst Critic
ISFPs may seem easy-going at first glance, but these types actually hold themselves to very specific standards.
INTPs are the least loving personality type. That doesn't mean they don't love, it just means they aren't very expressive about their love and they show it differently than other types. INTPs are known for being logical and analytical people.
Enter the Confident Individualists: the “lone wolves” of the personality type spectrum. Much like a lone wolf in the wild, Confident Individualists are born of a social species, yet are much more self-sufficient than most of their kind.
People with the ISFJ personality type consider it their duty to protect and care for those they love. They have a heart for the struggling people of the world and will often do whatever it takes to provide a safe, stable environment for people who need them.
ESFPs like to keep busy, filling their lives with hobbies, sports, activities, and friends. Because they'd rather live spontaneously than plan ahead, they can become overextended when there are too many exciting things to do.