n., adj., & v.
n. 1 Psychol. a person predominantly concerned with his or her own thoughts and feelings rather than with external things. 2 a shy inwardly thoughtful person.
adj. (also introverted) typical or characteristic of an introvert.
v.tr. 1 Psychol. direct (one's thoughts or mind) inwards. 2 Zool. withdraw (an organ etc.) within its own tube or base, like the finger of a glove. introversion n. introversive adj. introverted adj. introvertive adj.
[ INTRO- + vert as in INVERT ]