irrational Meaning in the Cambridge English Dictionary
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Meaning of “irrational” in the English Dictionary

"irrational" in British English

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irrationaladjective

uk   us   /ɪˈræʃ.ən.əl/
C2 not using ​reason or ​clearthinking: It's ​totally irrational, but I'm ​frightened of ​mice. His ​parents were ​worried by his ​increasingly irrational ​behaviour.
irrationally
adverb uk   us   /-i/
People often ​behave irrationally when they are under ​stress.
irrationality
noun [U] uk   /ɪˌræʃ.ənˈæl.ə.ti/  us   /-t̬i/
(Definition of irrational from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"irrational" in American English

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irrationaladjective

 us   /ɪˈræʃ·ə·nəl/
not ​based on ​reason or ​clearthinking; not ​reasonable: One of her ​mainthemes is the irrational ​nature of ​love.
(Definition of irrational from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “irrational”
in Spanish irracional, absurd…
in Vietnamese phi lý…
in Malaysian tidak rasional…
in Thai ไม่มีเหตุผล…
in Chinese (Simplified) 不理智的,没有理性的…
in Turkish mantıksız, saçma, akla dayanmayan…
in Russian нерациональный…
in Indonesian irasional, tidak logis…
in Chinese (Traditional) 不理智的,沒有理性的…
in Polish irracjonalny…
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