perspicacious Antonyms

ass-headed gormless half-baked dopey ill-advised undiscerning stupid silly rash obtuse nutty dim-witted dippy dumb as a box of rocks one sandwich short of a picnic ponky as silly as a goose unperceptive not playing with a full deck not the sharpest tool in the shed unintelligent ill-considered feather-brained dumb as dirt nonsensical mindless mad foolhardy fatuous dumb dull dim dense daft cuckoo crazy brainless foolish half-witted idiotic lunatic irresponsible injudicious indiscreet incautious inane imprudent impolitic imperceptive ignorant