The Collaborative International Dictionary of English v.0.48:
extroversive \extroversive\ 1. (Psychol.) same as extroverted. [PJC]WordNet (r) 3.0 (2006):
extroversive adj 1: directed outward; marked by interest in others or concerned with external reality [syn: extroversive, extraversive] [ant: ambiversive, introversive, introvertive]