1 intelligent, clever, bright, brilliant, quick-witted, sharp, acute, astute, capable, adept, apt, quick, ingenious:
Emily is one of the smartest children in the class.
2 canny, perspicacious, perceptive, percipient, discerning, knowledgeable, au fait, well-educated, well-read, erudite, learned, well-versed, aware, shrewd, streetwise, Slang hip, tuned in, US savvy:
Brendan is smart enough to avoid trouble.
3 elegant, chic, fashionable, stylish, modish, à la mode, well-groomed, trim, neat, dapper, spruce, soigné (soignée), Colloq snappy, natty:
You must admit that both Della and Paul are smart dressers.
4 pert, pointed, saucy, witty, nimble-witted, poignant, trenchant, effective:
I wish he would stop making smart remarks when I am trying to explain something
5 brisk, vigorous, animated, active, energetic, spirited, lively; quick, alert, jaunty, perky, breezy:
The enemy launched a smart counter-attack at dawn. He set off down the road at a smart pace
6 quick, swift, stiff, smarting, stinging, sharp, severe:
The mugger gave him a smart blow on the back of the neck.
7 sting, hurt, pinch, pain, ache, tingle, prickle, burn, throb, stab, pierce:
The antiseptic may smart a bit when it is put on the cut. The smoky atmosphere made her eyes smart.
8 injury, harm, pain, pang, twinge, affliction, suffering, smarting:
For years he silently endured the smart of his colleagues' ridicule.