misconduct

/mɪsˈkɑndʌkt/
noun
  1. Unacceptable or improper behavior, especially by a person in a position of authority or trust.
    • The teacher was fired for professional misconduct.
    • The company has a zero-tolerance policy for financial misconduct.
    • The athlete was banned from the sport for misconduct during the game.
Antonyms
verb
  1. To behave badly or improperly, especially in a professional or official role.
    • The judge warned the lawyer not to misconduct the trial.
    • If you misconduct the funds, you could face legal consequences.
    • The officer was accused of misconducting himself during the investigation.