不當行為,行為失檢,過失
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 done; the improper doing of an act which a person might lawfully do. --Bouvier. Wharton.
misfeasance n : doing a proper act in a wrongful or injurious manner