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
Working with his allies in Illinois and with other governors, Pritzker can lead in an effort to develop state responses to counteract or disrupt Trump.
—
David Greising, Chicago Tribune, 31 Jan. 2025
But Nakamura is a sincere believer in the power of films to counteract the lack of showing this nuanced truth and coming to terms with the dark history faced by such communities.
—Shayeza Walid, Variety, 24 Jan. 2025
This helps build emotional connections and counteract the often isolating nature of social media scrolling.29
7.
—Lindsay Curtis, Health, 6 Jan. 2025
These counteract molecules that trigger inflammation in the airways, but they are largely geared toward T2-high asthma.
—Aria Bendix, NBC News, 2 Jan. 2025
See all Example Sentences for counteract 
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David Greising, Chicago Tribune, 31 Jan. 2025
But Nakamura is a sincere believer in the power of films to counteract the lack of showing this nuanced truth and coming to terms with the dark history faced by such communities.
—Shayeza Walid, Variety, 24 Jan. 2025
This helps build emotional connections and counteract the often isolating nature of social media scrolling.29
7.
—Lindsay Curtis, Health, 6 Jan. 2025
These counteract molecules that trigger inflammation in the airways, but they are largely geared toward T2-high asthma.
—Aria Bendix, NBC News, 2 Jan. 2025
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 9 Feb. 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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