knowingEnglishOxford English Thesaurusknowing adjective 1 she gave a knowing smile: significant, meaningful, eloquent, expressive, suggestive, speaking; arch, sly, cunning, mischievous, impish, teasing, playful; enigmatic. 2 she's a very knowing child: sophisticated, worldly, worldly-wise, urbane, unprovincial, experienced, seasoned; knowledgeable, well informed, enlightened; shrewd, astute, acute, canny, sharp, wily, aware, perceptive, perspicacious; informal having been around. ▷antonyms ingenuous, innocent. 3 a knowing infringement of the rules: deliberate, intentional, conscious, intended, calculated, wilful, volitional, purposeful, done on purpose, premeditated, preconceived, pre-planned, planned, aforethought. ▷antonyms accidental.knowing Oxford Dictionary of English