Misbehave (verb)

1. To behave badly or improperly.
2. To act in an unacceptable or inappropriate manner.
3. To act in a way that is not acceptable or appropriate for a particular situation.
4. To conduct oneself in an unacceptable or improper manner.
5. To behave in a way that is not considered to be acceptable or appropriate.

Origin:

From mis- + behave.

Examples:

1. The children were warned not to misbehave during the field trip.
2. He was sent to the principal's office for misbehaving in class.
3. The dog misbehaved and destroyed the furniture.
4. She misbehaved at the dinner party and offended everyone.
5. The employee was fired for constantly misbehaving in the workplace.