-vyə(r) noun
Usage: see -or
Etymology: Middle English misbehaviour, from mis (I) + behaviour
1. : bad, improper, or rude behavior : ill conduct
the irresponsible misbehavior of a drunken driver resulted in an accident
the trial court's power to hold prosecuting attorneys in contempt for misbehavior in official transactions committed out of court — Harvard Law Review
2. U.S. military law : any conduct by a member of the armed forces before or in the presence of the enemy that does not conform to the standard of behavior established by the custom of United States arms for such a situation
misbehavior before the enemy on the same day, by making an unnecessary and disorderly retreat — H.E.Scudder