ir·​ra·​tio·​nal·​ism | \ i-ˈra-sh(ə-)nə-ˌli-zəm How to pronounce irrationalism (audio) \

Definition of irrationalism

1 : a system emphasizing intuition, instinct, feeling, or faith rather than reason or holding that the universe is governed by irrational forces
2 : the quality or state of being irrational

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Other Words from irrationalism

irrationalist \ i-​ˈra-​sh(ə-​)nə-​list How to pronounce irrationalism (audio) \ noun or adjective
irrationalistic \ i-​ˌra-​sh(ə-​)nə-​ˈli-​stik How to pronounce irrationalism (audio) \ adjective

Examples of irrationalism in a Sentence

Recent Examples on the Web This exercise forces you to succumb to the irrationalism of your silly heart. Mayukh Sen, Bon Appetit, 6 June 2018 My gut reaction is that these student mobbists manage to combine snowflake fragility and lynch mob irrationalism into one perfectly poisonous cocktail. Jay Willis, GQ, 9 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irrationalism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of irrationalism

1811, in the meaning defined at sense 1

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The first known use of irrationalism was in 1811

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Cite this Entry

“Irrationalism.” Dictionary, Merriam-Webster, Accessed 25 Oct. 2021.

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