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dumb as a rock

Adjective CEFR C2

Definitions

Very stupid; dumb as a post.

US

Equivalents

Examples

“Voice assistants are “dumb as a rock,” Satya Nadella, Microsoft’s chief executive, said in an interview this month with The Financial Times, declaring that newer A.I. would lead⟳ the way.”

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
See all C2 English words →

See also

dumb as a sack of bricks dumb as a sack of hammers dumb as a stump dumb as an ox dumb as dirt dumb as nails

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