• synonyms


See more synonyms for counteract on Thesaurus.com
verb (used with object)
  1. to act in opposition to; frustrate by contrary action.
Show More

Origin of counteract

First recorded in 1670–80; counter- + act
Related formscoun·ter·ac·tant, adjectivecoun·ter·act·er, coun·ter·ac·tor, nouncoun·ter·act·ing·ly, adverbcoun·ter·ac·tion, nouncoun·ter·ac·tive, adjectivecoun·ter·ac·tive·ly, adverbnon·coun·ter·ac·tive, adjectiveun·coun·ter·act·ed, adjective


See more synonyms for counteract on Thesaurus.com
neutralize, counterbalance, contravene, thwart.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for counteraction

Historical Examples

  • We may have the counteraction generator, but they may have something else that we don't know about.

    The Highest Treason

    Randall Garrett

  • These are remedies which are useful in the counteraction of Scurvy and Purpura.

    The Action of Medicines in the System

    Frederick William Headland

  • He had heard of my life, and, as a counteraction of vice, he wanted its example in the palace.

  • Counteraction is only one mode of combination; in no case is any force destroyed.


    Carveth Read

  • But the first counteraction came, as it ought, in the shape of a new book for children.

British Dictionary definitions for counteraction


  1. (tr) to oppose, neutralize, or mitigate the effects of by contrary action; check
Show More
Derived Formscounteraction, nouncounteractive, adjectivecounteractively, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for counteraction



1670s, from counter- + act (v.). Related: Counteracted; counteracting.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper