rationality

noun
ra·​tio·​nal·​i·​ty | \ ˌra-shə-ˈna-lə-tē How to pronounce rationality (audio) \
plural rationalities

Definition of rationality

1 : the quality or state of being rational
2 : the quality or state of being agreeable to reason : reasonableness
3 : a rational opinion, belief, or practice usually used in plural

Examples of rationality in a Sentence

Recent Examples on the Web

And the tendency to obsess over reason and rationality overlooks this fact. Sean Illing, Vox, "Why science can’t replace religion," 4 Nov. 2018 Human decision-making and rationality depend on a lot more than just following rules, which machines are good at. Zachary Fryer-biggs, The Verge, "The Pentagon plans to spend $2 billion to put more artificial intelligence into its weaponry," 8 Sep. 2018 Liv Boeree is a science communicator and TV host specializing in astrophysics, rationality, and poker. Liv Boeree, Vox, "How an 18th-century priest gave us the tools to make better decisions," 30 Nov. 2018 Liv Boeree is a science communicator and TV host specializing in astrophysics, rationality, and poker. Liv Boeree, Vox, "How an 18th-century priest gave us the tools to make better decisions," 30 Nov. 2018 American nationalism is opposed to the kind of detached rationality Mr. Macron described. Marco Rubio, WSJ, "Trump Is Right About Nationalism," 13 Nov. 2018 The computer, which is the result of a five-year project, processes speech and is equipped with human-like thought and rationality. Fox News, "IBM computer taps AI to successfully debate humans," 19 June 2018 The fact that Kingelez’s projects are unrealizable shields them from any nattering rationality. Peter Schjeldahl, The New Yorker, "The Utopian Vision of Bodys Isek Kingelez," 4 June 2017 That's because their arrogance outweighs their rationality. Glenn Garvin, miamiherald, "In Nicaragua, the political battle is moving from the streets to the negotiating table," 5 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rationality.' 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 rationality

1628, in the meaning defined at sense 1

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The first known use of rationality was in 1628

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More Definitions for rationality

rationality

noun
ra·​tio·​nal·​i·​ty | \ ˌrash-ə-ˈnal-ət-ē How to pronounce rationality (audio) \
plural rationalities

Medical Definition of rationality

1 : the quality or state of being rational
2 : the quality or state of being agreeable to reason

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More from Merriam-Webster on rationality

Rhyming Dictionary: Words that rhyme with rationality

Nglish: Translation of rationality for Spanish Speakers

Britannica English: Translation of rationality for Arabic Speakers

Britannica.com: Encyclopedia article about rationality

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