well-advised, prudent, sensible, wise, discreet, reasonable, rational, seasonable, timely, sagacious, sound, proper, thoughtful, thorough, efficacious, perceptive, acute, shrewd, discriminating, judicial, keen, astute, sage, discerning, sharp, careful, wary, worldly-wise, farsighted, clearsighted, sophisticated, calculating, profound, perspicacious, accurate, penetrating, informed, sane, practical, seemly, decorous, cautious, politic, diplomatic, circumspect, prudential, precautionary, expedient, capable, ready, tactful, cool, calm, considered, deliberated, well-considered, well-judged, prescient, knowing, sapient, well-timed, moderate, temperate, sober; see also discreet, intelligent 1, rational 1, reasonable 1, 2.
Antonyms rash*, ill-advised, hasty.
