1. (a.) Endowed with the faculty of understanding or reason; as, man is an intelligent being.

2. (a.) Possessed of intelligence, education, or judgment; knowing; sensible; skilled; marked by intelligence; as, an intelligent young man; an intelligent architect; an intelligent answer.

3. (a.) Cognizant; aware; communicate.

acute adroit alert all-knowing apperceptive appercipient apprehending apprehensive apt astute au fait aware brainy bright brilliant canny cerebral clever cognizant comprehending conceptive conceptual conscious consequent cunning discerning discursive docile educable endopsychic enlightened erudite facile formable gifted ideational impressionable ingenious insightful instructable intellectual internal keen knowing knowledgeable logical malleable mental mindful moldable motivated noetic noological not so dumb omniscient perceptive percipient perspicacious phrenic plastic pliable prehensile psychic psychologic quick quick-witted rational ready reasonable reasoning receptive ripe for instruction sagacious sage sane savvy schoolable sensible sharp shrewd smart sophic sound spiritual strong-minded subjective susceptible teachable thinking thirsty for knowledge trainable understanding willing wise