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counteract

[ koun-ter-akt ]
/ ˌkaʊn tərˈækt /
||
SEE MORE SYNONYMS FOR counteract ON THESAURUS.COM

verb (used with object)

to act in opposition to; frustrate by contrary action.

RELATED WORDS

cure-all, fix, drug, redress, therapy, treatment, antidote, medicine, panacea, pill, relief, countermeasure, assistance, remedy, aid, placebo, medication, recovery, elixir, healing

Nearby words

counter-boulle, counter-ion, counter-reformation, counter-revolution, counter-revolutionary, counteract, counterargument, counterattack, counterattraction, counterbalance, counterbid

Origin of counteract

First recorded in 1670–80; counter- + act
SYNONYMS FOR counteract
Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for counteractant

  • What had Clay to offer as a counteractant, as an equal inspiration to the pride of this lusty nation?

    Children of the Market Place|Edgar Lee Masters

British Dictionary definitions for counteractant

counteract

/ (ˌkaʊntərˈækt) /

verb

(tr) to oppose, neutralize, or mitigate the effects of by contrary action; check
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 counteractant

counteract


v.

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

Online Etymology Dictionary, © 2010 Douglas Harper