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1. Oxford Dictionary

   rational

   • IPA[ˈraʃən(ə)l]

   英式

   • adj.
     based on or in accordance with reason or logic；able to think sensibly or logically
2. • 釋義

   adj.

   形容詞

   • 1. based on or in accordance with reason or logic I'm sure there's a perfectly rational explanation 同義詞 logical, reasoned, well reasoned, sensible, reasonable, ... 更多cogent, coherent, intelligent, wise, judicious, sagacious, astute, shrewd, perceptive, enlightened, clear-eyed, clear-sighted, commonsensical, common-sense, well advised, well grounded, sound, sober, prudent, circumspect, politic, down-to-earth, practical, pragmatic, matter-of-fact, hard-headed, with both one's feet on the ground, unidealistic, informaljoined-up反義詞 irrational, illogical
   • ▪ able to think sensibly or logically Ursula's upset—she's not being very rational 同義詞 lucid, coherent, sane, in one's right mind, able to think/reason clearly, ... 更多of sound mind, in possession of all one's faculties, normal, balanced, well balanced, clear-headed, compos mentis, informalall there反義詞 insane
   • ▪ endowed with the capacity to reason man is a rational being 同義詞 intelligent, thinking, discriminating, reasoning, cognitive, ... 更多mental, cerebral, logical, analytical, conceptual, rareratiocinative
   • 2. (of a number, quantity, or expression) expressible, or containing quantities which are expressible, as a ratio of whole numbers.