counteract

verb
coun·​ter·​act | \ ˌkau̇n-tər-ˈakt How to pronounce counteract (audio) \
counteracted; counteracting; counteracts

Definition of counteract

transitive verb

: to make ineffective or restrain or neutralize the usually ill effects of by means of an opposite force, action, or influence a drug used to counteract fatigue

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Other Words from counteract

counteraction \ ˌkau̇n-​tər-​ˈak-​shən How to pronounce counteraction (audio) \ noun
counteractive \ ˌkau̇n-​tər-​ˈak-​tiv How to pronounce counteractive (audio) \ adjective

Examples of counteract in a Sentence

The drug will counteract the poison. this medication will counteract the symptoms but it won't kill the infection

Recent Examples on the Web

Well, while Pelosi is still toxic for Democrats, Lamb was able to counteract that by 1) distancing himself from Pelosi, and 2) having a story to tell. Chuck Todd, NBC News, "Why the Pennsylvania special election was a gut punch for the GOP," 14 Mar. 2018 For the eyes, concentrate on the under eyes and tear ducts to effectively counteract dark circles. Lauren Valenti, Vogue, "A Guide to Ageless Makeup for Women Over 50, According to an Industry Veteran," 27 Mar. 2019 Those two games, along with Battlefield V, pair DLSS with real-time ray tracing features to counteract the latter’s performance hit. Brad Chacos, PCWorld, "BioWare's Anthem adds DLSS support as Nvidia's RTX push continues," 26 Mar. 2019 Yet operation of those older systems was highlighted in training over the years, and pilots had to memorize steps to counteract potentially dangerous unintended consequences. Andrew Tangel, WSJ, "Boeing Withheld Information on 737 Model, According to Safety Experts and Others," 12 Nov. 2018 While conventional suspensions use steel antiroll bars to counteract body roll, hydraulic systems send fluid to the opposite side of the car. Ezra Dyer, Popular Mechanics, "3 Technologies That Are Making Car Suspensions Smarter Than Ever," 31 Jan. 2017 These antioxidant-like compounds may help counteract chronic inflammation, a physiological state where your body's cells stay on high alert due to a lingering or past threat. Caroline Picard, Good Housekeeping, "The 5 Best Health Benefits of Ginger Water," 11 Jan. 2019 That internal stress helps counteract any drops and falls the glass might face in the future once incorporated inside a smartphone. Shannon Liao, The Verge, "Why your brand-new smartphone will scratch just as easily as your old one," 19 Oct. 2018 But that has more to do with our internal pressures no longer getting counteracted by an atmosphere, Carroll said, than any direct effects of the vacuum itself. Rafi Letzter, Washington Post, "Space X sent a cute red Tesla Roadster into space. Here’s what’ll probably happen to it," 7 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'counteract.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of counteract

1655, in the meaning defined above

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Statistics for counteract

Last Updated

18 May 2019

Look-up Popularity

Time Traveler for counteract

The first known use of counteract was in 1655

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More Definitions for counteract

counteract

verb

English Language Learners Definition of counteract

: act against (something) : to cause (something) to have less of an effect or to have no effect at all

counteract

verb
coun·​ter·​act | \ ˌkau̇n-tər-ˈakt How to pronounce counteract (audio) \
counteracted; counteracting

Kids Definition of counteract

: to make (something) have less of an effect or no effect at all The antidote counteracts the poison.

counteract

transitive verb
coun·​ter·​act | \ ˌkau̇nt-ə-ˈrakt How to pronounce counteract (audio) \

Medical Definition of counteract

: to make ineffective or restrain or neutralize the usually ill effects of by an opposite force vitamin K counteracts the effects of warfarin

Other Words from counteract

counteraction \ -​ˈrak-​shən How to pronounce counteraction (audio) \ noun

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Comments on counteract

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