'Perversity' definitions:

Definition of 'perversity'

From: WordNet
noun
Deliberate and stubborn unruliness and resistance to guidance or discipline [syn: contrariness, perversity, perverseness]
noun
Deliberately deviating from what is good; "there will always be a few people who, through macho perversity, gain satisfaction from bullying and terrorism" [syn: perversity, perverseness]

Definition of 'Perversity'

From: GCIDE
  • Perversity \Per*ver"si*ty\, n. [L. perversitas: cf. F. perversit['e].] The quality or state of being perverse; perverseness. [1913 Webster]