View synonyms for counteract


[ koun-ter-akt ]

verb (used with object)

  1. to act in opposition to; frustrate by contrary action.

    Synonyms: thwart, contravene, counterbalance, neutralize


/ ˌkaʊntərˈækt /


  1. tr to oppose, neutralize, or mitigate the effects of by contrary action; check

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Derived Forms

  • ˌcounterˈactively, adverb
  • ˌcounterˈaction, noun
  • ˌcounterˈactive, adjective

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Other Words From

  • counter·actant adjective
  • counter·acter counter·actor noun
  • counter·acting·ly adverb
  • counter·action noun
  • counter·active adjective
  • counter·active·ly adverb
  • noncoun·ter·active adjective
  • uncoun·ter·acted adjective

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Word History and Origins

Origin of counteract1

First recorded in 1670–80; counter- + act

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Example Sentences

So, when the glider is going downhill, its lift arrow is tilted a little bit forward and counteracts its drag.

As a result, if the right amount of the boat is submerged, the force of buoyancy is strong enough to counteract gravity pulling the boat down, and the boat floats.

That force counteracts the downward pull of gravity, allowing the toys to float on both sides of the liquid’s surface.

When there’s money on the line you have to counteract any favoritism which can require self-analysis.

One way to counteract groupthink is to encourage voters to embrace the ambiguity of what “most valuable” means.

Ambition in Congress would counteract ambition in the Executive, and the daily struggle would help keep all the branches in check.

We could use more of those moments to counteract the constant saccharine spin.

Courts are given independence under our system precisely to counteract the unconstitutional actions of the majority.

When exercise feels like a dreaded chore, our bodies release stress hormones that counteract many of its positive effects.

You have to counteract it with something, and I guess discipline was the mark.

English influence was all-powerful at Lisbon and the new envoy had not the talent to counteract it.

Of course the cook sought to counteract such tendencies, but he had to be very circumspect, for Sambo resented insults fiercely.

Although it was May, a wood-fire had been lighted in her room to counteract the chilly damp of the evening.

He told me it was to counteract the fever and produce sleep, and said that the only thing then was to keep you quiet.

Julian Langley, not intentionally, perhaps, was continually trying to counteract the good advice which Arthur gave him.


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