irrational
adjective/ɪˈræʃənl/
/ɪˈræʃənl/
- not based on, or not using, clear logical thought synonym unreasonable
- an irrational fear
- You're being irrational.
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
- …
- completely
- quite
- totally
- …
Word Originlate Middle English: from Latin irrationalis, from in- ‘not’ + rationalis (from ratio(n-) ‘reckoning, reason’, from rat- ‘reckoned’, from the verb reri).Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
irrational