rational
Synonyms: balanced, calm, cerebral, cognitive, collected, deductive, deliberate, discerning, discriminating, enlightened, far-sighted, impartial, intellectual, intelligent, judicious, knowing, level-headed, logical, lucid, perspicacious, philosophic, prudent, reasonable, reasoning, reflective, sagacious, sane, sensible, sober, sound, stable, synthetic, thinking, thoughtful, well-advised, wise Source: Roget's New Millennium Thesaurus Sign in to see full entry.