'Misfeasance' definitions:

Definition of 'misfeasance'

From: WordNet
noun
Doing a proper act in a wrongful or injurious manner

Definition of 'Misfeasance'

From: GCIDE
  • Misfeasance \Mis*fea"sance\, n. [OF. pref. mes- wrong (L. minus less) + faisance doing, fr. faire to do, L. facere. Cf. Malfeasance.] (Law) A trespass; a wrong arising from an overt act; the improper doing of an act which a person might lawfully do. --Bouvier. --Wharton. [1913 Webster]

Synonyms of 'misfeasance'

From: Moby Thesaurus