/ Dictionary / Index M misfeasance: Meaning and Definition of Find definitions for: mis•fea•sance Pronunciation: (mis-fē'zuns), [key] — n. Law. a wrong, actual or alleged, arising from or consisting of affirmative action. the wrongful performance of a normally lawful act; the wrongful and injurious exercise of lawful authority. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misfeasance (Thesaurus) misestimate misfeasor Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language