knowing

Synonyms: alive apprehensive astute awake brainy bright brilliant canny clever cognizant competent conscious conversant cool crack deliberate discerning expert insightful intelligent intended intentional judicious knowledgeable observant perceptive percipient qualified quick quick-witted sagacious sage sensible sentient sharp skillful slick smart sophic sophisticated tuned-in vigilant watchful well-informed wise with-it witting worldly worldly-wise

Antonyms: inexperienced unaware uncognizant unknowing