The Collaborative International Dictionary of English v.0.48:
Misconduct \Mis*con"duct\, n.
1. Wrong conduct; bad behavior; mismanagement. --Addison.
2. Unlawful or unethical conduct by a person holding a public
office or having a position of responsibility in the
administration of justice; malfeasance; as, discussing the
case out of court during a trial is misconduct by a juror;
especially, misuse of office by an elected or appointed
government official, also called misconduct in office.
Syn: Misbehavior; misdemeanor; mismanagement; misdeed;