Englishcanny
adjective
canny investors:
shrewd, astute, sharp, sharp-witted, discerning, acute, penetrating, discriminating, perceptive, perspicacious, clever, intelligent, wise, sagacious, sensible, judicious, circumspect, careful, prudent, cautious;
cunning, crafty, wily, artful, calculating;
informal on the ball, smart, savvy;
British, informal suss, sussed;
Scottish, & Northern English, informal pawky;
North American, informal heads-up, as sharp as a tack, whip-smart;
rare long-headed, sapient, argute.
▷antonyms foolish, reckless.