Rational
Definition of Rational
Ra´tion`al Pronunciation: răsh´ŭn`al a.  1.  Relating to the reason; not physical; mental.   2.  Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning.   3.  Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious; as, rational conduct; a rational man.   4.  (Chem.) Expressing the type, structure, relations, and reactions of a compound; graphic;  said of formulæ. See under Formula.Rational horizon  b   (Astron.) See Horizon, 2 (b). 
 n.  1.  A rational being. 
Related Words
acceptable, admissible, algorismic, algorithmic, aliquot, all there, analytic, balanced, bright, calm, cardinal, cerebral, circumspect, cleareyed, clearheaded, clearminded, cogent, commonsense, compos mentis, conceptive, conceptual, consequent, cool, coolheaded, credible, decimal, differential, digital, discriminating, discursive, downtoearth, earthy, endopsychic, enlightened, even, everyday, exponential, figural, figurate, figurative, finite, fractional, hardheaded, healthyminded, ideational, imaginary, impair, impossible, infinite, informed, integral, intellectual, internal, just, justifiable, knowing, knowledgeable, legitimate, levelheaded, levelheaded, logarithmic, logical, logometric, lucid, matteroffact, mental, mentally sound, negative, noetic, noological, normal, not so dumb, numeral, numerary, numerative, numeric, odd, of sound mind, ordinal, pair, philosophical, phrenic, plausible, positive, positivistic, possible, practical, practicalminded, pragmatic, prime, prudent, psychic, psychologic, radical, ratiocinative, ratiocinatory, real, realist, realistic, reasonable, reasoning, reciprocal, right, saneminded, scientific, scientistic, secular, sober, soberminded, sophic, soundminded, soundthinking, spiritual, stable, straightthinking, strongminded, subjective, submultiple, surd, thinking, together, transcendental, understanding, unideal, unidealistic, unromantic, unsentimental, wellargued, wellbalanced, wellfounded, wellgrounded, wholesome, worldly

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