dumb as a post
Completely without intelligence
Dumb as a post describes someone or something utterly stupid or slow-witted.
The comparison is to a wooden fence post—an object with no capacity for thought whatsoever.
The phrase emphasizes complete mental vacancy rather than mere foolishness: He's nice enough, but dumb as a post.
- wooden-headedStupidly stubborn, inflexible
- foolishLacking good sense
- ignorantLacking knowledge or awareness
- dimwittedLacking mental acuity
- idioticExtremely lacking intelligence
thickheaded · unintelligent · simpleminded · dense · slow · obtuse · thick as a brick · stupid · brainless · lights are on but nobody's home · not the sharpest tool in the shed · sharp as a marble · not the brightest bulb · mindless · unthinking · moronic · vacuous · naivete
dumb as a postbrilliant
Intensely bright or gifted
genius · smart as a whip · sharp as a tack · intelligent · brainy
dumb as a postquick-witted
Fast at thinking
sharp-witted · sharp · clever · witty · shrewd
dumb, dumber, dumbest, dumbly, dumbness, dumbed, dumbing, post, posts