- Psychology a person predominantly concerned with their own thoughts and feelings rather than with external things. Compare with extrovert.
- another term for introverted.
mid 17th century (as a verb in the general sense 'turn one's thoughts inward [in spiritual contemplation]'): from modern Latin introvertere, from intro- 'to the inside' + vertere 'to turn'. Its use as a term in psychology dates from the early 20th century