げんばつ
severe punishment; rigorous measures
Common word
Noun
あ、みんなには内緒ないしょだよ？寮りょうを夜中よなかに抜ぬけ出だすのは厳罰げんばつだからね？
Oh, that's a secret, OK? Because slipping out of the dorm in the night is severely punished.