counteract
verb
coun·ter·act
ˌkau̇n-tər-ˈakt 
counteracted; counteracting; counteracts
: 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
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
Being intentional with your digital choices can help counteract resignation.
—
Mark Travers, Forbes.com, 4 Apr. 2025
Essentially working to restore volume and counteract hollowness, Rufolo says this procedure can instantly brighten the undereye area and provide lasting results depending on the type of filler used—often combined with other treatments like laser therapy for optimal outcomes.
—Kiana Murden, Vogue, 4 Apr. 2025
This may include raising U.S. tariffs to levels charged by other countries and counteracting non-tariff trade barriers.
—Carlie Procell, USA Today, 28 Mar. 2025
This strategy not only differentiates them in a crowded market but also helps counteract rising production costs.
—Hugo Kimber, Forbes, 24 Mar. 2025
See All Example Sentences for counteract
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Mark Travers, Forbes.com, 4 Apr. 2025
Essentially working to restore volume and counteract hollowness, Rufolo says this procedure can instantly brighten the undereye area and provide lasting results depending on the type of filler used—often combined with other treatments like laser therapy for optimal outcomes.
—Kiana Murden, Vogue, 4 Apr. 2025
This may include raising U.S. tariffs to levels charged by other countries and counteracting non-tariff trade barriers.
—Carlie Procell, USA Today, 28 Mar. 2025
This strategy not only differentiates them in a crowded market but also helps counteract rising production costs.
—Hugo Kimber, Forbes, 24 Mar. 2025
See All Example Sentences for counteract
Cite this Entry
“Counteract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counteract. Accessed 13 Apr. 2025.
Copy CitationKids Definition
counteract
verb
coun·ter·act
ˌkau̇nt-ə-ˈrakt
: to lessen the force, action, or influence of : offset
a drug that counteracts a poison
Medical Definition
counteract
transitive verb
coun·ter·act
ˌkau̇nt-ə-ˈrakt
: to make ineffective or restrain or neutralize the usually ill effects of by an opposite force
vitamin K counteracts the effects of warfarin
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