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駄目
dame
no good
この計画は駄目だ。
This plan is no good.
informal
worthless or useless; no good
この方法は駄目だ。
This method is useless.
Often used to express strong disapproval or failure.
formal
not allowed; forbidden
ここで煙草を吸うのは駄目です。
Smoking is not allowed here.
Used in rules or prohibitions, often in signs or instructions.
informal
hopeless; beyond help
彼の病気はもう駄目だ。
His illness is beyond help.
Implies a situation is irreparable or lost.
Related Phrases
Pro Tip
When to use 駄目 vs 無駄
Use 駄目 for things that are 'no good' or 'forbidden' (e.g., この計画は駄目だ). Use 無駄 for things that are 'wasted' or 'futile' (e.g., 時間の無駄).
Gold Rule
Avoid overusing 駄目
While 駄目 is useful, overusing it can sound harsh. Use alternatives like だめ or いけない in softer contexts.
Word Origin
From the verb 駄目 (damaru, 'to be of no use'), which combines 駄 (dame, 'poor quality') and 目 (me, 'eye'). Originally referred to poor quality goods, later extended to mean 'useless' or 'forbidden'.
Usage Notes
Used in both casual and formal contexts. In prohibitions, it often appears in signs or instructions (e.g., 駄目です). Avoid using it in overly polite or formal settings unless appropriate.
Word Breakdown
駄
poor quality; low grade
root目
eye; indicator
root和英辞典