inventive Antonyms

as dumb as a bag of hammers wooden-headed thickheaded boneheaded dopey empty-headed barmy wooden witless vapid vacuous moronic birdbrained dumb as a box of rocks not the full shilling dunce-like soft in the head pig-ignorant pea-brained muttonheaded lamebrained unintelligent imbecilic dunderheaded thick slow-witted slow dozy doltish dim derivative dense daft cretinous crazy chuckleheaded brainless dull dull-witted dumb simple-minded obtuse mindless infertile imitative imbecile ignorant idiotic half-witted foolish