rational(redirected from rationalness)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia.
rationaladjective agreeable to reason, analytical, balanced, cerebral, clearheaded, cognitive, consentaneus, discerning, discriminating, endowed with reason, exercising reason, intelligent, judicious, justifiable, knowing, legitimate, levelheaded, logical, lucid, objective, plausible, ratiocinative, ratione praeditus, reasonable, reflective, sagacious, sage, sane, sensible, sober, sound, stable, thinking, thoughtful, understanding, wise
Associated concepts: rational basis
See also: analytical, colorable, conscious, convincing, deductive, discriminating, discursive, judicial, judicious, juridical, justifiable, logical, lucid, normal, plausible, possible, pragmatic, reasonable, sane, sapient, sensible, solid, sound, tenable