deviceful Antonyms

antiquated dumb as a sack of hammers dumb as dirt feather-brained not the sharpest knife in the drawer on the way out overaged soft in the head thick as two short planks not updated as dumb as an ox dumb as a post dumb as a doorknob awkward dumb old retarded slow stupid unsophisticated uneducated dumb as a bag of hammers dumb as a box of rocks not very quick