affecting, implying, or deliberately revealing shrewd knowledge of secret or private information

a knowing glance.

that knows; having knowledge or information; intelligent.

shrewd, sharp, or astute.

conscious; intentional; deliberate.

adjective

inexperienced , unaware , uncognizant , unknowing

adjective

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 , intellectual , sapient , cagey , perspicacious , slick , (colloq.) artful , aware , cognition , cognitive , cunning , deep , educated , experience , expressive , gnostic , informed , perception , scholastic , shrewd , significant , witty