canny

Synonyms

astute, clear-eyed, clear-sighted, hard-boiled, hardheaded, knowing, savvy, sharp, sharp-witted, shrewd, smart;

Antonyms

unknowing;

Near Antonyms

artless, guileless, ingenuous, innocent, naive (or naïve);

exploitable, gullible (also gullable);

dense, dull, obtuse;

birdbrained, brain-dead, brainless, dim-witted, dopey (also dopy), dumb, empty-headed, feebleminded, half-witted, knuckleheaded, lamebrain (or lamebrained), lunkheaded, simple, slow, slow-witted, softheaded, stupid, thickheaded, thick-witted, unintelligent, weak-minded;

foolish, idiotic (also idiotical), imbecile (or imbecilic), moronic, silly, thoughtless, witless;

ignorant, uninformed;

Related Words

artful, cagey (also cagy), crafty, cunning, devious, foxy, guileful, slick, sly, subtle, tricky, wily;

discerning, insightful, perceptive, percipient, perspicacious, sagacious, sage, sapient, wise;

agile, alert, brainy, bright, brilliant, clever, intelligent, keen, nimble, quick, quick-witted, sharp-eyed, sharp-sighted;

apt, ingenious, resourceful;

calculating, scheming;