Last Updated：2025/11/26

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

Extremely stupid.

音声機能が動作しない場合はこちらをご確認ください

See correct answer

dumber than a rock

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Source Word

dumber than a rock

Adjective

comparative-only

Extremely stupid.

Japanese Meaning

非常に愚か、極度に馬鹿な状態を表す表現

What is this buttons?

We all thought he was dumber than a rock when he insisted the sun revolved around the earth.

Google Translation / DeepL Translation

彼が「太陽が地球の周りを回っている」と主張したとき、私たちは皆、彼が信じられないほど愚かだと思った。

Sense（1）

Extremely stupid.

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