having or showing acute mental discernment and keen practical sense; shrewd

a sagacious lawyer.

Obsolete . keen of scent.

adjective

careless , foolish , ignorant , stupid

adjective

acute , apt , astucious , astute , cagey , canny , clear-sighted , clever , cool * , discerning , discriminating , far-sighted , foxy * , gnostic , heady , hip * , insightful , intelligent , keen , knowing , knowledgeable , perceptive , perspicacious , prudent , rational , sage , sapient , savvy * , sensible , sharp , shrewd , smooth , sophic , wise , witty , balanced , commonsensible , commonsensical , judicious , levelheaded , reasonable , sound , well-founded , well-grounded , cunning , penetrating , quick , smart