knows what's what

astute intelligent penetrating sharp shrewd smart

alert awake aware brainy conscious cute discerning ear to the ground intuitive keen knowing knowledgeable observant penetrative quick responsive savvy sensitive tuned-in understanding wise

blunt dull foolish idiotic ignorant imbecile slow stupid unintelligent unstylish

astute discerning discreet incisive insightful intuitive knowing knowledgeable observant penetrating wise

acute awake aware brainy conscious ear to the ground gnostic insighted judicious keen penetrative percipient perspicacious quick rational responsive sagacious sage savvy sharp sophic tuned-in wise to

careless foolish idiotic ignorant stupid thoughtless unaware undiscerning unintelligent

dense insensitive unobservant