Entry 1 sense Webster, 1913 Perversity /pẽrv-ẽrs'-ət-ē/ · Per·ver·si·ty · IPA /pə(ɹ)ˈvɜː(ɹ)sɪti/ 01 n. The quality or state of being perverse; perverseness. 1. The quality or state of being perverse; perverseness.