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.
The great counterexample is ancient Athens, which was steered by a five-hundred-person council whose members were generally chosen by lot. Alex Ross, New Yorker, 15 June 2026 Amazon is the counterexample everyone reaches for — the growth-prioritizing company that famously refused to turn a profit and still won. Rory McDonald, Fortune, 6 June 2026 But there are counterexamples that lend to optimism. Matt K. Lewis, Mercury News, 5 June 2026 The coding-tool fight is the counterexample running in real time. Jon Markman, Forbes.com, 1 June 2026 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

Browse Nearby Words

Cite this Entry

“Counterexample.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterexample. Accessed 16 Jun. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster