'Counteract' definitions:
Definition of 'counteract'
From: WordNet
verb
Act in opposition to [syn: antagonize, antagonise, counteract]
verb
Oppose or check by a counteraction [syn: countercheck, counteract]
verb
Oppose and mitigate the effects of by contrary actions; "This will counteract the foolish actions of my colleagues" [syn: counteract, countervail, neutralize, counterbalance]
verb
Destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war" [syn: sabotage, undermine, countermine, counteract, subvert, weaken]
Definition of 'Counteract'
From: GCIDE
- Counteract \Coun`ter*act"\ (koun`t?r-?kt"), v. t. [imp. & p. p. Counteracted; p. pr. & vb. n. Counteracting.] To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice. [1913 Webster]
Synonyms of 'counteract'
From: Moby Thesaurus
- annul,
- antagonize,
- baffle,
- balance,
- balk,
- be antipathetic,
- be at cross-purposes,
- be inimical,
- be opposed to,
- beat against,
- blast,
- brave,
- bump heads,
- cancel,
- cancel out,
- challenge,
- checkmate,
- circumvent,
- clash,
- collide,
- conflict,
- conflict with,
- confound,
- confront,
- confute,
- contend,
- contradict,
- contrapose,
- contraposit,
- contrast,
- contrast with,
- contravene,
- controvert,
- correct,
- counter,
- counterattack,
- counterbalance,
- countercheck,
- countermand,
- counterpoise,
- counterpose,
- countervail,
- counterweigh,
- counterwork,
- cross,
- dash,
- defeat,
- defy,
- destroy,
- discomfit,
- disconcert,
- discountenance,
- dish,
- disrupt,
- elude,
- equiponderate,
- face,
- fix,
- flummox,
- foil,
- front,
- frustrate,
- go against,
- go counter to,
- interfere with,
- join the opposition,
- juxtapose in opposition,
- knock the chocks,
- lie opposite,
- lock horns,
- match,
- meet head-on,
- militate against,
- mitigate,
- negate,
- negative,
- neutralize,
- nonplus,
- not abide,
- nullify,
- offset,
- oppose,
- oppugn,
- perplex,
- play at cross-purposes,
- polarize,
- pose against,
- protest,
- put in opposition,
- rectify,
- redress,
- resist,
- right,
- ruin,
- run against,
- run counter to,
- sabotage,
- scotch,
- set off,
- set over against,
- spike,
- spoil,
- square,
- square up,
- stand opposed,
- stand opposite,
- stonewall,
- stump,
- subtend,
- swim upstream,
- take issue with,
- thwart,
- traverse,
- upset,
- vote against,
- withstand,
- work against