INTJ Characteristics. The MBTI identifies preferences in four key dimensions: 1) Extraversion vs Introversion, 2) Sensing vs Intuition, 3) Thinking vs Feeling and 4) Judging vs Perceiving. As you can tell by the four-letter acronym, INTJ stands for Introverted, Intuitive, Thinking, and Judging. 1  Introversion (I): INTJs tend to be introverted and prefer to work alone. 2  Intuition (N): INTJs look at the big picture and like to focus on abstract information rather than concrete details.