Last Updated：2025/12/04

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

(simile, slang) Very stupid.

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dumb as a doorknob

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Source Word

dumb as a doorknob

Adjective

slang

(simile, slang) Very stupid.

Japanese Meaning

非常に愚か（頭が働かない状態である） / 馬鹿極まりない、非常に愚かな

What is this buttons?

That idea was dumb as a doorknob.

Google Translation / DeepL Translation

あの考えは非常に愚かだった。

Sense（1）

(simile, slang) Very stupid.

as

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