testing

adjective

test·​ing ˈte-stiŋ How to pronounce testing (audio)
: requiring maximum effort or ability
a most difficult and testing problemErnest Bevin

Examples of testing in a Sentence

beginning rock climbers should choose a less testing route to the summit
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.
Agencies could use DCaaS to integrate inputs from scientists, communities and AI simulations, pre-testing policies through a living simulation of collective thought. Akhilesh Sharma, Forbes.com, 28 Aug. 2025 The 2024 Paris Games promise to be one of the most testing urban events in Olympic history, a security nightmare foretold by arson attacks on rail lines around France, and its organizers were not coating it in the usual sugary pageantry. Sally Jenkins, Washington Post, 27 July 2024 And after several months of testing and post-testing use, this machine’s no-fuss performance has kept us stacking it night after night. Samson McDougall, Parents, 5 Mar. 2024 There will likely be more testing now that Hamlin is no longer intubated, Dr. Feinstein says. Korin Miller, SELF, 6 Jan. 2023 See All Example Sentences for testing

Word History

First Known Use

1858, in the meaning defined above

Time Traveler
The first known use of testing was in 1858

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Cite this Entry

“Testing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/testing. Accessed 10 Sep. 2025.

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