Dictionary
counteract
verb coun·ter·act \ˌkau̇n-tər-ˈakt\
: act against (something) : to cause (something) to have less of an effect or to have no effect at all
Full 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>
— coun·ter·ac·tion \-ˈak-shən\ noun
— coun·ter·ac·tive \-ˈak-tiv\ adjective
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First Known Use of COUNTERACT
1655
Related to COUNTERACT
- Synonyms
- annul, cancel (out), compensate (for), correct, offset, counterbalance, counterpoise, make up (for), negative, neutralize
Rhymes with COUNTERACT
COUNTERACT Defined for Kids
counteract
verb coun·ter·act \ˌkau̇n-tər-ˈakt\
coun·ter·act·edcoun·ter·act·ing
Definition of COUNTERACT for Kids
: to make (something) have less of an effect or no effect at all <The antidote counteracts the poison.>
Medical Dictionary
counteract
transitive verb coun·ter·act \ˌkau̇nt-ə-ˈrakt\
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>
—coun·ter·ac·tion \-ˈrak-shən\ noun
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