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
Synonyms
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
Others at the club would counteract that view, insisting that people understand what Ratcliffe is trying to do and why.
—
Adam Crafton, The Athletic, 23 Dec. 2024
As the load approaches the inner walls of the backpack, the dampener will adjust just enough to counteract the weight shift, stopping the load from colliding with the outer shell of the backpack.
—IEEE Spectrum, 19 Dec. 2024
Some people respond well to approaches to counteract genetic hair loss, including topical therapies, lasers, platelet-rich plasma (PRP) injections, and hair transplants.8 To understand your options, talk to a healthcare provider specializing in hair restoration.
—Nancy Lebrun, Verywell Health, 11 Dec. 2024
To counteract banner blindness, marketers turned to native ads, which seamlessly integrate with the content and style of a website to create more cohesion, raising the standards of ad design and placement.
—Sergii Denysenko, Forbes, 3 Dec. 2024
See all Example Sentences for counteract 
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Adam Crafton, The Athletic, 23 Dec. 2024
As the load approaches the inner walls of the backpack, the dampener will adjust just enough to counteract the weight shift, stopping the load from colliding with the outer shell of the backpack.
—IEEE Spectrum, 19 Dec. 2024
Some people respond well to approaches to counteract genetic hair loss, including topical therapies, lasers, platelet-rich plasma (PRP) injections, and hair transplants.8 To understand your options, talk to a healthcare provider specializing in hair restoration.
—Nancy Lebrun, Verywell Health, 11 Dec. 2024
To counteract banner blindness, marketers turned to native ads, which seamlessly integrate with the content and style of a website to create more cohesion, raising the standards of ad design and placement.
—Sergii Denysenko, Forbes, 3 Dec. 2024
See all Example Sentences for counteract
Dictionary Entries Near counteract
Cite this Entry
“Counteract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counteract. Accessed 2 Jan. 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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