counterfactual

adjective

coun·​ter·​fac·​tu·​al ˌkau̇n-tər-ˈfak-chə-wəl How to pronounce counterfactual (audio)
-chəl
-shwəl
-chü-əl
Synonyms of counterfactualnext
: contrary to fact
counterfactual assumptions

Examples of counterfactual in a Sentence

Recent Examples on the Web
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In our counterfactual future, Argentina, Chile, and Uruguay in South America’s southern cone, so close to Antarctica, have to adapt to some of the harshest effects of the widening hole in the ozone. Big Think, 31 Mar. 2026 Now that Warner has chosen Paramount, that counterfactual vanishes. Nick Lichtenberg, Fortune, 28 Feb. 2026 This is the problem of trying to determine a counterfactual case. Erik Sherman, Forbes.com, 31 Dec. 2025 Health care ethicists, for example, use this kind of counterfactual reasoning to evaluate harm and benefit, asking how a patient would have fared without an intervention. Jen Zamzow, The Conversation, 17 Dec. 2025 See All Example Sentences for counterfactual

Word History

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of counterfactual was in 1946

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Cite this Entry

“Counterfactual.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterfactual. Accessed 6 Apr. 2026.

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