shrewd Synonyms

astute acute subtle discerning sharp scheming keen sagacious penetrating calculative artful conniving calculating prescient slippery slick sly shifty sharp-witted probing provident sensible quick quick-witted rational resourceful retiary sage sane saucisson prudent smart sneaky sound knowledgeable long-haired down-to-earth long-headed cagey cagy cunningham insightful opportunistic streetwise savvy acknowledgeable subtile tricksy tricky underhand