Definition for Rational:

• Expressing the type, structure, relations, and reactions of a compound; graphic; -- said of formulae. See under Formula.

Synonyms for Rational:

• adj.

  •believable (adjective)
  • credible.
  •calculational (adjective)
  • computational,
  • suppositional,
  • numerical,
  • arithmetic,
  • algorithmic,
  • mathematical,
  • proportional,
  • geometric,
  • methodical,
  • calculational,
  • statistical,
  • approximate,
  • Systematical,
  • judgmental,
  • valuational,
  • algebraic.
  •calm (adjective)
  • level-headed.
  •compos mentis (adjective)
  • mentally sound.
  •intellectual (adjective)
  • brainy,
  • understanding,
  • psychological,
  • reasoning,
  • cerebral,
  • highbrowed,
  • phrenic,
  • egghead.
  •intelligent (adjective)
  • well-informed,
  • all there.
  •levelheaded (adjective)
  • coolheaded,
  • in one's right mind.
  •persuasive (adjective)
  • convincing.
  •realistic; of sound mind (adjective)
  • deliberate,
  • stable,
  • objective,
  • cool,
  • circumspect,
  • knowing,
  • perspicacious,
  • discerning,
  • normal,
  • together,
  • reflective,
  • cognitive,
  • synthetic,
  • impartial,
  • far-sighted,
  • balanced.
  •reasonable (adjective)
  • cogent,
  • tenable,
  • unexcessive,
  • inductive,
  • thought-out,
  • plausible,
  • feasible,
  • within reason,
  • conceivable.
  •ruminative (adjective)
  • ruminative.
  •sane (adjective)
  • of sound mind,
  • compos mentis,
  • clearheaded,
  • well-balanced,
  • right,
  • Sober-minded.
  •sober (adjective)
  • disciplined,
  • unexcited.
  •tenable (adjective)
  • arguable.

• adv

  •a priori (adverb)
  • deductive.

• n.

  •quantity (noun)
  • rational number.
  •rational (noun)
  • demythologized,
  • logical,
  • lucid,
  • demythologised,
  • noetic.

• Other synonyms:

  •
  • discriminating,
  • earthbound,
  • levelheaded,
  • well-advised,
  • collected,
  • Cool-headed,
  • centred,
  • Clear-headed,
  • steady,
  • even-tempered,
  • unflappable,
  • rationally,
  • imperturbable,
  • enlightened,
  • commonsensible,
  • dependable,
  • sensibly,
  • advisable,
  • analytic,
  • justifiable,
  • analytical,
  • ratiocinative,
  • responsibly,
  • proactive,
  • pragmatic,
  • politic,
  • well-grounded,
  • businesslike,
  • philosophical,
  • healthy,
  • pragmatist,
  • practically.
  •
  • reason,
  • well-founded,
  • realist,
  • emotional,
  • coherence,
  • realism.
  •
  • prudent,
  • sapient,
  • moderate.
  •
  • concrete,
  • mature.
  •
  • sense.
  •
  • open.
  •anthropoid
  • human.
  •dispassionate
  • unimpassioned.
  •practical
  • hardheaded.
  •sensible
  • common sense.

Paraphrases for Rational:

• Equivalence

  • Adjective
    sensible, logical, intelligent, reasonable, sane.
  • Proper noun, singular
    reasonable.

• Independent

  • Adjective
    streamlined, rationalize, legitimate, meaningful, common-sense, prudent, intellectual, justifiable, well-reasoned, illogical, unreasonable, orderly, understandable, justified, coherent, cost-effective, proper, smart, rationalising, well-considered, appropriate, interest-based, reasonableness, equitable, decent, valid, realistic, plausible, clever, thoughtful, sound, sober, consistent, well-balanced, worthwhile, prudential, right-thinking, feasible, streamlining.
  • Proper noun, singular
    sound.

• Exclusion

  • Adjective
    irrational.

• Other Related

  • Adjective
    rationalized, judicious, rationale.
  • Proper noun, singular
    rationale.

Antonyms for Rational:

• adj.

  • all
    irrational.
  • realistic; of sound mind
    insane, unrealistic, stupid, idiotic, unbalanced, senseless, illogical, unsound, foolish, unsystematic, excited, agitated, unreasonable, unwise, ridiculous, confused, unstable, nonsensical, careless, unintelligent.
  • Other antonyms:
    misguided, unscientific, invalid, nonthinking, simple, undiscerning, silly, unconvincing, nonintellectual, sophistic, physical, unjustified, specious, preposterous, ignorant, Unreasoned, unthinking, obtuse, misleading, implausible, flimsy, sottish, unarticulated, Eristic, thoughtless, groundless, casuistic, uninformed, loony, uncompelling, futile.

Homophones for Rational:

• retinal, rationale, retinol, rottenly, routinely, rotational, rationally.

Hypernym for Rational:

• n.

  • quantity
    fraction.

Hyponym for Rational:

• n.

  • quantity
    real, real number.