adjective
wise, thoughtful
Synonyms: accurate, acute, astute, calculating, careful, cautious, circumspect, clear-sighted, considerate, considered, diplomatic, discerning, discreet, discriminating, efficacious, enlightened, expedient, far-sighted, informed, judicial, keen, perceptive, perspicacious, politic, profound, prudent, quick-witted, rational, reasonable, sagacious, sage, sane, sapient, seasonable, seemly, sensible, sharp, shrewd, skillful, sober, sophisticated, sound, thorough, wary, well-advised, well-judged, worldly-wise
Antonyms: foolish, hasty, idiotic, injudicious, irrational, nonsensical, reckless, senseless, thoughtless, unwise