misbehaviour

The students were punished for their misbehaviour during the assembly.

生徒たちは集会中の不品行のため罰せられました。

Repeated misbehaviour will not be tolerated.

繰り返される不品行は許容されません。

His misbehaviour at the formal dinner embarrassed his family.

正式な晩餐会での彼の無作法は家族を恥ずかしい思いにさせた。