astute or sharp in practical matters

a shrewd politician.

keen; piercing.

artful.

Archaic . malicious.

Obsolete . bad.

Obsolete . shrewish.

adjective

foolish , frivolous , naive , stupid , unthinking

adjective

acute , argute , artful , astucious , astute , brainy * , cagey , calculating , canny , crafty , cunning , cutting * , deep * , discerning , discriminating , farsighted , foxy * , heady * , ingenious , inside , in the know , judicious , keen , knowing , on the inside , on top of , penetrating , perceptive , perspicacious , piercing , probing , profound , prudent , quick-witted , sagacious , savvy * , sensible , shark , sharp , slick * , slippery * , sly , smart , smooth , streetwise , tricky , underhand , up on , wily , wise , wised up , slick , acuminous , biting , cagy , careful , circumspect , clever , contriving , diplomatic , foxy , harsh , heady , intelligent , long-headed , neat , parlous , politic , reflective , sage , sharpwitted , suave , subtle