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このアイデアはダメだ
This idea is no good
Not good; no good; bad; unacceptable
この映画はダメだ
This movie is no good
ダメな人
a bad person
Often used to express dissatisfaction or rejection of something or someone
This is a very casual expression. Avoid using it in formal or professional settings.
To make the expression less harsh, you can add 'ね' at the end, as in 'ダメだね'.
From the verb 'ダメる' (to be no good), derived from the noun 'ダメ' (no good, bad)
Commonly used in casual conversation to express disapproval or rejection. Can be softened with 'ダメだね' to sound less harsh.