— misbehaver , n.
/mis'bi hayv"/ , v. , misbehaved, misbehaving .
v.i.
1. to behave badly or improperly: The children misbehaved during our visit.
v.t.
2. to conduct (oneself) without regard for good manners or accepted moral standards: Several of the guests misbehaved themselves.
[ 1425-75; late ME; see MIS- 1 , BEHAVE ]