Also found in: Thesaurus, Medical, Legal.


tr.v. coun·ter·act·ed, coun·ter·act·ing, coun·ter·acts
To oppose and mitigate the effects of by contrary action; check.

coun′ter·ac′tion n.
coun′ter·ac′tive adj.
coun′ter·ac′tive·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.counteraction - action intended to nullify the effects of some previous action
nullification, override - the act of nullifying; making null and void; counteracting or overriding the effect or force of something


The act of retaliating:
Idioms: an eye for an eye, a tooth for a tooth, like for like , measure for measure .
إبْطال مَفْعول
ellentétes cselekedet
etkisini giderme


(kauntərˈӕkt) verb
to undo or prevent the effect of. the government's efforts to counteract inflation.
ˌcounterˈaction noun
References in classic literature ?
On the contrary, she was so totally unused to have her pleasure consulted, or to have anything take place at all in the way she could desire, that she was more disposed to wonder and rejoice in having carried her point so far, than to repine at the counteraction which followed.
He performed these various operations with so much mystery, activity, and generosity, that never was Fouquet, then laboring under an attack of fever, more nearly saved, except for the counteraction of that immense disturber of human projects, - chance.
But the completer, the positive, soul, which will merely take [25] that mood into its service (its proper service, as we hold, is in counteraction to the vulgarity of purely positive natures) is also certainly in evidence in Amiel's "Thoughts"--that other, and far stronger person, in the long dialogue; the man, in short, possessed of gifts, not for the renunciation, but for the reception and use, of all that is puissant, goodly, and effective in life, and for the varied and adequate literary reproduction of it; who, under favourable circumstances, or even without them, will become critic, or poet, and in either case a creative force; and if he be religious (as Amiel was deeply religious) will make the most of "evidence," and almost certainly find a Church.
As I cried, I kicked the wall, and took a hard twist at my hair; so bitter were my feelings, and so sharp was the smart without a name, that needed counteraction.
The doctrine of hatred must be preached, as the counteraction of the doctrine of love, when that pules and whines.
Counteraction to Internet pirates is carried out in the Russian Federation on the basis of Art.
These actions were taken by the US side in the framework of counteraction to the North Korean nuclear and ballistic programs.
Ways to increase effectiveness of counteraction to terrorism and religious extremism, to ensure security and rule of law in the region through introduction of concrete mechanisms were discussed during the talks.
We warn him once again that if his regime resorts to military counteraction after losing discretion, it will face a tougher countermeasure by the DPRK and fall deeper into a quagmire.
In contrast, this Article articulates a novel counteraction theory of patent-ineligibility.
North Korea is ready to react to any mode of war desired by the US," he said, adding that "We will take the toughest counteraction against the provocateurs in order to defend ourselves by powerful force of arms.
The new and least (if any) side-effect method means a levon or gestrel releasing intrauterine device (LNGIUD) yielding local progesterone counteraction to this major side effect of estrogen therapy.