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

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 Steering the front wheels at speed requires a lot of work to counteract the strong gyroscopic effect caused by the immense G loads. Jonathan M. Gitlin, Ars Technica, "Bloodhound SSC: How do you build a car capable of 1,000mph?," 24 Nov. 2018 According to the French newspaper 20 Minutes, half the participants take a cocktail of dietary supplements that hopefully will counteract the negative effects of weightlessness, and the other half do not. Megan Friedman, Country Living, "Scientists Want to Pay You $17,000 to Lie in Bed for Two Months," 6 Apr. 2017 These also counteract the weight of the railgun parked on the bow. Kyle Mizokami, Popular Mechanics, "China’s Railgun Has Reportedly Gone to Sea," 31 Dec. 2018 That said, ginger cannot prevent food poisoning or counteract ingestion of a harmful substance, so contact your physician ASAP if something requires urgent medical attention. Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "8 Surprising Health Benefits of Ginger You Need to Know About," 19 Nov. 2018 The green makeup is best for patting over redness, the yellow makeup counteracts the darkness of under eye circles, and so on and so forth. SELF, "The 6 Best Color Correctors, According to Makeup Artists," 5 Dec. 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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Last Updated

23 Mar 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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