Meaning of malfeasance

mal•fea•sance

Pronunciation: (mal-fē'zuns), [key]
— n. Law.
  1. the performance by a public official of an act that is legally unjustified, harmful, or contrary to law; wrongdoing (used esp. of an act in violation of a public trust). Cf.(def. 2),
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
malevolent malformation