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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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In Dark Matter, a parallel-universe version of Chicago as a desolate wasteland is more obviously counterfactual—and thus less uncanny—than a parallel universe in which the main character’s wife had not given up her career as an artist to have children. Ian Bogost, The Atlantic, 26 Nov. 2025 Such speculations can be amusing and interesting but, like much counterfactual history, they cannot be tested. Literary Hub, 19 Nov. 2025 What-If Tool, counterfactual evaluation for outcome assessment and outcome bias assessment. Trushant Mehta, Forbes.com, 15 Aug. 2025 In an era where many of the thought-leaders and decision-makers in our global society refuse to accept the actual facts of reality, and instead argue from a counterfactual position that supports their preferred narrative, this isn’t just a problem for practicing scientists. Ethan Siegel, Big Think, 13 Aug. 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 5 Dec. 2025.

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