percipient Antonyms

ass-headed ill-advised undiscerning thoughtless stupid silly senseless ridiculous reckless rash nutty thickheaded half-baked gormless one sandwich short of a picnic silly as a goose ponky as silly as a goose ill-considered half-assed dumb as a box of rocks dumb as a bag of hammers dippy dim-witted nonsensical negligent foolish foolhardy fatuous dumb dim daft cuckoo crazy careless brainless half-witted heedless idiotic mindless mad lunatic irresponsible injudicious indiscreet incautious inane imprudent impolitic absurd