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 slow on the uptake as thick as two short planks as silly as a goose 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 dumb as a bag of hammers dull-headed foolish fatuous dumb dim dense daft cuckoo crazy brainless batty half-witted idiotic imbecile dim-witted crackbrained gormless thickheaded dopey empty-headed barmy stupid slow lunatic absurd