misconduct

noun

wrongful, improper, or unlawful conduct motivated by premeditated or intentional purpose or by obstinate indifference to the consequences of one's acts
bad behavior, to behave badly

Pronunciation: /mɪsˈkɒndʌkt/ / /mɪsˈkɑndʌkt/ / /mɪsˈkɔndʌkt/ / /mɪskənˈdʌkt/

Etymology: From mis- + conduct (noun sense).

Behavior that is considered to be unacceptable.
“The student was banned from using the university's computing resources for two weeks due to gross misconduct on the Internet.”
A penalty or write-up for improper behavior.
“There is definitely an indication of retaliation in this case. I have never received a misconduct for possessing or using drugs.”
“After Jonathan Marchessault buried an empty-net goal with 90 seconds left in overtime, Hartman yelled from the bench and allegedly threw his stick in the officials’ direction. Hartman was assessed a misconduct for abusive language, according to the game sheet.”

Etymology: From mis- + conduct (verb sense).

To mismanage.
To behave inappropriately, to misbehave.
“It had been pointed out […] that in the past enemy aliens misconducting themselves had been returned to the internment camp.”
To act improperly.
“The quartermasters have misconducted, and the government should bear the loss resulting from that misconduct.”
“It seems no answer for the recipient to allege that he was incompetent and misconducted, but that the acts were committed outside the jurisdiction.”