Mal*fea"sance (?), n. [F. malfaisance, fr. malfaisant injurious, doing ill; mal ill, evil + faisant doing, p. pr. of faire to do. See Malice, Feasible, and cf. Maleficence.] Law
The doing of an act which a person ought not to do; evil conduct; an illegal deed.
[Written also malefeasance
© Webster 1913.