counteract

[ koun-ter-akt ]

verb (used with object)

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

   Synonyms: thwart, contravene, counterbalance, neutralize

counteract

/ ˌkaʊntərˈækt /

verb

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

Derived Forms

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

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

Word History and Origins

Origin of counteract¹

First recorded in 1670–80; counter- + act

Example Sentences

“We want to counteract this pattern where the more involved you are, the worse you are,” Ford said.

From Los Angeles Times

To counteract the slight bitterness of the cocoa, Melton’s pumpkin pie filling also incorporates smooth, nutty tahini.

From Salon

“Ambition,” he said, “must be made to counteract ambition. The interest of the man must be connected with the constitutional rights of the place.”

From Salon

They should use the state’s power and influence to mount a pro-environment offense, counteracting as much of the impending damage as possible.

From Los Angeles Times

In an effort to counteract this public health crisis, scientists are looking for new solutions inside the intricate mechanics of bacterial infection.

From Science Daily

Related Words

• cancel out
• correct
• counterbalance
• halt
• negate
• neutralize
• offset
• prevent
• rectify
• redress
• resist
• thwart