This is the 5714th most frequent Japanese word.
だめ
"Not good," "no," "bad," or "unacceptable."
The word 'だめ' is used to mean 'not acceptable' or 'not allowed'.
それはだめだよ。
That's not okay.
The word 'だめ' is used to describe something as 'bad' or 'wrong'.
だめな考え方を直そう。
Let's fix the wrong way of thinking.
The word 'だめ' indicates prohibition or something inappropriate in the given context.