The meaning of INTROVERT is a person whose personality is characterized by introversion : a typically reserved or quiet person who tends to be introspective and enjoys spending time alone. An introvert is a person who gains energy from solitude or quiet environments and values introspection and reflection. Learn about the four types of introverts, their common traits and how they differ from extroverts. Introvert refers to people who tend to be quiet, reserved, and introspective. They don't share their thoughts and feelings much since they don't want to draw attention. Introverts are relatively more withdrawn, retiring, reserved, quiet, and deliberate; they may tend to mute or guard expression of positive affect, adopt more skeptical views or positions, and prefer to work independently. [concept originated by Carl Jung for the study of personality types] —introversive adj. —introvert n. —introverted adj.