counteract

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

verb (used with object)

to act in opposition to; frustrate by contrary action.

Origin of counteract

First recorded in 1670–80; counter- + act

OTHER WORDS FROM counteract

Words nearby counteract

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

Words related to counteractant

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

Example sentences 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 forms of counteract

counteraction, noun counteractive, adjective counteractively, adverb