countermeasure

noun

coun·​ter·​mea·​sure ˈkau̇n-tər-ˌme-zhər How to pronounce countermeasure (audio)
-ˌmā-
: an action or device designed to negate or offset another
The most well-known countermeasure by a physician is a malicious-persecution suit against the lawyer who sued him and failed to prove a case.William J. Curran
The Germans had developed a tricky magnetic mine, but the British had developed a countermeasure for this even before the mine was used.Bernard Brodie and Fawn M. Brodie

Examples of countermeasure 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.
Actions have been tempered and countermeasures have materialized. John S. Tobey, Forbes.com, 14 July 2025 Brazilian President Luiz Inacio Lula da Silva said Wednesday that the country will respond with reciprocity to the new tariffs rates, citing a Brazilian law which allows the government to take appropriate countermeasures. Lisa Kailai Han,sawdah Bhaimiya, CNBC, 10 July 2025 Earlier this month, the Japanese government announced a series of countermeasures aimed at reducing the number of deaths by up to 80% and structural damage by 50%, including making buildings more earthquake-resistant and improving evacuation protocols. Los Angeles Times, 8 July 2025 Kyiv is locked in a technological and production arms race to ensure that its drones are both sophisticated enough and plentiful enough to overcome Russian jamming and other countermeasures. Jon Finer, Foreign Affairs, 7 July 2025 See All Example Sentences for countermeasure

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of countermeasure was in 1923

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Cite this Entry

“Countermeasure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countermeasure. Accessed 21 Jul. 2025.

Kids Definition

countermeasure

noun
coun·​ter·​mea·​sure ˈkau̇nt-ər-ˌmezh-ər How to pronounce countermeasure (audio)
-ˌmāzh-
: an action or device designed to counteract another

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