sharp-witted Antonyms

as daft as a brush lamebrain half-assed feather-brained dunderheaded dumber than a rock dumb as a sack of hammers dumb as a post dumb as a doornail dumb as a doorknob dumb as a box of rocks dumb as a bag of hammers slow on the uptake as thick as two short planks ass-headed as thick as a plank as dumb as dirt as dumb as a sack of hammers as dumb as a post as dumb as a doorknob incredibly stupid extremely stupid as dumb as a box of rocks as dumb as a bag of hammers as silly as a goose dull-headed dim-witted foolish fatuous dumb dull-witted dim dense daft cuckoo crazy brainless batty half-witted idiotic crackbrained gormless thickheaded dopey empty-headed barmy stupid slow opaque lunatic