irrational adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com

Definition of irrational adjective from the Oxford Advanced Learner's Dictionary

irrational

adjective
 
/ɪˈræʃənl/
 
/ɪˈræʃənl/
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  1. not based on, or not using, clear logical thought synonym unreasonable
    • an irrational fear
    • You're being irrational.
    opposite rational
    Extra Examples
    • There was nothing inherently irrational in such a decision.
    • What is the reason for this seemingly irrational behaviour?
    Oxford Collocations Dictionaryverbs
    • appear
    • be
    • seem
    • …
    adverb
    • completely
    • quite
    • totally
    • …
    See full entry
    Word Originlate Middle English: from Latin irrationalis, from in- ‘not’ + rationalis (from ratio(n-) ‘reckoning, reason’, from rat- ‘reckoned’, from the verb reri).
See irrational in the Oxford Advanced American DictionarySee irrational in the Oxford Learner's Dictionary of Academic English
Check pronunciation: irrational

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reliable
adjective
 
 
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