1)Malfeasance is a wrongful or criminal act perpetrated by a public official or other person of authority. An act of malfeasance is done intentionally, disregarding the fact that the action is morally or legally wrong and will cause someone harm. The adjective form is malfeasant. The word malfeasance is derived from the French word malfaisance, which means wrongdoing.
2) Misfeasance is a an act that lawful, but performed in an unlawful, illegal or injurious manner. Generally, misfeasance is different from malfeasance in that the actor does not have the intent to harm, but the harm comes through the actor’s irresponsibility or negligence. The adjective form is misfeasant. The word misfeasance is derived from the French word mesfaisance, meaning to mis-do.
