un·​rea·​son | \ ˌən-ˈrē-zᵊn How to pronounce unreason (audio) , ˈən-ˌrē-\

Definition of unreason

: the absence of reason or sanity : irrationality, madness

Examples of unreason in a Sentence

Recent Examples on the Web

An answer to the mystery is found both in folklore (the emperor’s new clothes) and in the pioneering work of Daniel Kahneman, Amos Tversky and others in behavioral economics, which points to the economic basis of much characteristic human unreason. Holman W. Jenkins, WSJ, "Electric Cars and Media Explained," 6 Nov. 2018 Social media is no small force behind the present age of unreason and disharmony. Alexander Heffner, Time, "The American Historical Record Includes Court Cases, Famous Speeches—And Trump’s Tweets. Here’s Why That Matters," 2 July 2018 With reason in the service of unreason, killings were done with industrial efficiency. Hugh Hunter, Philly.com, "'Diary of Anne Frank' at People's Light: A girl grows up, and horror descends," 27 Feb. 2018 While Newton and Locke were ushering in an Age of Reason in Europe, over in America unreason was taking new seductive forms. Hanna Rosin, New York Times, "Fake News: It’s as American as George Washington’s Cherry Tree," 5 Sep. 2017 Small wonder some white people retreat into bunkers of unreason and fear. Author: Leonard Pitts, Alaska Dispatch News, "Once again, GOP reaps what it sows," 19 Aug. 2017 Kurt Andersen has engaged in a great degree of magical thinking of his own, trying to make a connection between Christianity and his perception of unreason in American dialogue. Norm Ornstein, The Atlantic, "The Conversation," 10 Oct. 2017 For a whole complex of reasons, or unreason, this grift evoked no guilt. Aaron Gilbreath, Longreads, "The Whistleblower in the Family," 8 Sep. 2017 At some point hope for a new and improved Trump deteriorates into unreason. Michael Gerson, Alaska Dispatch News, "The endgame of the GOP’s accommodation with Trump," 20 June 2017

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

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First Known Use of unreason

1827, in the meaning defined above

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Time Traveler for unreason

The first known use of unreason was in 1827

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Rhyming Dictionary: Words that rhyme with unreason

Comments on unreason

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to form ideas or theories about something

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