IRRATIONAL • DICCIONARIO INGLES.COM • Definition of Irrational

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/ɪrˈæʃənəl/ Listen

adjective

irrational adj.

Not rational; void of reason or understanding; as, brutes are irrational animals.

Not according to reason; having no rational basis; clearly contrary to reason; easily disproved by reasoning; absurd; of assertions and beliefs. Hence, of actions: Foolish; unreasonable. "It seemed utterly irrational any longer to maintain it."

(Math.) Not capable of being exactly expressed by an integral number, nor by a ratio of integral numbers; surd; said especially of roots. See Surd.

Synonyms: Absurd; foolish; preposterous; unreasonable; senseless. See Absurd.

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Etymology of 'Irrational'

Collaborative International Dictionary of English 0.48

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"Irrational" Quotes from Famous Books

... haste Mr. Jocelyn had not carefully gauged his syringe, and the over-amount of morphia thrown into his system so stimulated him that his words appeared exceedingly irrational to the young man, whose judgment was based on unusual shrewdness and common-sense. He was greatly puzzled by the sudden change in his companion. It was evident that he had not been drinking, for his breath was untainted and his utterance was natural. But his face was flushed, and he seemed possessed ...

— Without a Home • E. P. Roe

... inquiry (though perhaps it may be frivolous to take so much thought of what, no doubt, costs Pisistratus so little) by the last chapters in my nephew's story. I see this poor boy Leonard, alone with his fallen hopes (though very irrational they were) and his sense of shame. And I read his heart, I dare say, better than Pisistratus does, for I could feel like that boy if I had been in the same position; and conjecturing what he and thousands like him must go through, I asked myself, 'What can save him and ...

— My Novel, Complete • Edward Bulwer-Lytton

... interrupted almost rudely. She was moved by a perfectly irrational impulse to stop him, to delay ...

— The Lamp of Fate • Margaret Pedler

... done as to prove delight to any of the young readers, it is hoped that no worse effect will result than to make them wish themselves a little older, that they may be allowed to read the Plays at full length (such a wish will be neither peevish nor irrational). When time and leave of judicious friends shall put them into their hands, they will discover in such of them as are here abridged (not to mention almost as many more, which are left untouched) many surprising events and turns of fortune, ...

— Tales from Shakespeare • Charles and Mary Lamb

... was the strange irrelevancy, levity, the enmity—the irrational, baffling nature of the anguishing conversation, as if with the unapproachable men we ...

— Romance • Joseph Conrad and F.M. Hueffer

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