Entry 1 sense Webster, 1913 Introversion · In·tro·ver·sion · IPA /ɪntɹəˈvəɹʒən/ 01 n. The act of introverting, or the state of being introverted; the act of turning the mind inward. 1. The act of introverting, or the state of being introverted; the act of turning the mind inward.