The Myers-Briggs Type Indicator (MBTI) is a personality assessment tool that categorizes individuals into 16 different personality types based on their preferences in four key areas: extraversion (E) or introversion (I), sensing (S) or intuition (N), thinking (T) or feeling (F), and judging (J) or perceiving (P). While it is important to note that no MBTI type is inherently more or less social than others, the introverted types are generally perceived as being less socially inclined compared to the extraverted types.

Among the 16 MBTI types, the least social types are typically those that fall under the introverted category. These types include:

1. ISTJ (Introverted-Sensing-Thinking-Judging): ISTJs are practical, detail-oriented, and prefer to focus on facts and logic. They tend to be reserved and prefer spending time alone or with a small group of close friends. ISTJs may find socializing draining and may need time alone to recharge their energy.

2. ISFJ (Introverted-Sensing-Feeling-Judging): ISFJs are warm, caring, and value harmony. They are often focused on meeting the needs of others and may find socializing overwhelming at times. ISFJs prefer deep, meaningful connections and may be more comfortable in one-on-one interactions rather than large social gatherings.

3. INFJ (Introverted-Intuitive-Feeling-Judging): INFJs are insightful, empathetic, and have a strong sense of idealism. They tend to be private individuals who value deep connections and meaningful conversations. INFJs may find small talk and superficial interactions draining and may prefer spending time alone or with a few close friends.

4. INTJ (Introverted-Intuitive-Thinking-Judging): INTJs are analytical, strategic, and independent thinkers. They are often focused on their own ideas and goals and may find socializing to be a distraction from their pursuits. INTJs prefer deep, intellectual conversations and may find it challenging to engage in small talk or casual social interactions.

5. INTP (Introverted-Intuitive-Thinking-Perceiving): INTPs are curious, logical, and enjoy exploring complex ideas. They tend to be independent thinkers who value their alone time for introspection and intellectual pursuits. INTPs may find socializing draining and may prefer engaging in solitary activities or spending time with a small group of like-minded individuals.

It is important to note that while these types may be perceived as less social due to their introverted nature, it does not mean that they are incapable of socializing or lack social skills. Introverted individuals simply tend to prefer more intimate, meaningful interactions and may need time alone to recharge their energy.