counterexample

noun

coun·​ter·​ex·​am·​ple ˈkau̇n-tər-ig-ˌzam-pəl How to pronounce counterexample (audio)
: an example that refutes or disproves a proposition or theory

Examples of counterexample 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.
History offers a counterexample worth remembering. Aron Solomon september 3, Literary Hub, 3 Sep. 2025 Lucid dreaming provides a counterexample. Rachel Barr, Big Think, 20 Aug. 2025 Thousands of moves have nonetheless been enough to break ground on some long-standing counterexamples to the Andrews-Curtis conjecture. Deni Ellis Béchard, Scientific American, 11 Aug. 2025 Desert Storm: Airpower Was Decisive Pundits who dismiss airpower’s effectiveness often ignore perhaps the clearest counterexample—Operation Desert Storm (1991). David A. Deptula, Forbes.com, 23 June 2025 See All Example Sentences for counterexample

Word History

First Known Use

1809, in the meaning defined above

Time Traveler
The first known use of counterexample was in 1809

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Cite this Entry

“Counterexample.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterexample. Accessed 12 Sep. 2025.

Last Updated: - Updated example sentences
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