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

Keep scrolling for more

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 Twists open up the upper back and counteract slumped posture. Stephanie Mansour, CNN, "This 5-minute yoga routine will boost your energy and start the day right," 22 May 2020 Included in the document, say the officials, is a list of ways the U.S. is working to counteract China's behavior, including the Navy's freedom of navigation efforts, in which forces operate in areas China claims to own. NBC News, "White House China report calls Beijing's lack of transparency threat to U.S. interests, officials say," 20 May 2020 Catherine foresaw the need to write her own story through her memoirs, counteracting rumors that had spread as a result of her rise to power. Suyin Haynes, Time, "The Great Is Only 'Occasionally' True. But These Aspects of Hulu's Catherine the Great Series Are Based in History," 15 May 2020 To counteract this, Sutter Health this month launched a Covid Advice Line (866-961-2889). Sam Whiting, SFChronicle.com, "A shelter-in-place side effect: Bay Area people are afraid to go to the hospital," 23 Apr. 2020 To counteract these bad actors — and after years of effort — a new rule banning 44 species of invasive plants took effect Saturday. London Gibson, Indianapolis Star, "These common landscaping plants are now illegal to sell in Indiana. Here's why.," 21 Apr. 2020 The efforts range from monetary easing to keep financial markets operating and to lower interest rates, to fiscal spending to counteract the sharp drop-off in economic activity. John Detrixhe, Quartz, "IMF data shows over 190 countries’ economic responses to coronavirus-led disruptions," 2 Apr. 2020 The Fed, the Bank of England and other central banks have cut their policy rates to counteract fears over the virus pandemic, which has triggered a sharp fall in stock prices and bond yields. Megumi Fujikawa, WSJ, "Coronavirus-Driven Rate-Cutting Is Less Likely in Japan," 13 Mar. 2020 While the Trump administration dithers and argues with Congress and trips over its own feet, the Federal Reserve has moved decisively to counteract the economic impacts of the coronavirus. Jeff Spross, TheWeek, "The Fed's $1.5 trillion intervention, explained," 12 Mar. 2020

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.

See More

First Known Use of counteract

1655, in the meaning defined above

Keep scrolling for more

Learn More about counteract

Time Traveler for counteract

Time Traveler

The first known use of counteract was in 1655

See more words from the same year

Statistics for counteract

Last Updated

31 May 2020

Cite this Entry

“Counteract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counteract. Accessed 31 May. 2020.

Keep scrolling for more

More Definitions for counteract

counteract

verb
How to pronounce counteract (audio)

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

Keep scrolling for more

Comments on counteract

What made you want to look up counteract? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

May 2020 Words of the Day Quiz

  • a blooming wisteria tree
  • Which is a synonym of exiguous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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