counteract

• POS: Verb (transitive)
• HYPHEN: coun=ter=act

CIDE DICTIONARY

counteract, v. t. 

 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]

OXFORD DICTIONARY

counteract, v.tr.
1 hinder or oppose by contrary action.
2 neutralize.

Derivative

counteraction n. counteractive adj.

THESAURUS

counteract

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

ROGET THESAURUS

counteract

Compensation

VB make compensation, compensate, compense, indemnify, counteract, countervail, counterpoise, balance, outbalance, overbalance, counterbalance, set off, hedge, square, give and take, make up for, lee way, cover, fill up, neutralize, nullify, equalize, make good, redeem.

Hindrance

VB hinder, impede, filibuster, impedite, embarrass, keep off, stave off, ward off, obviate, avert, antevert, turn aside, draw off, prevent, forefend, nip in the bud, retard, slacken, check, let, counteract, countercheck, preclude, debar, foreclose, estop, inhibit, shackle, restrict, obstruct, stop, stay, bar, bolt, lock, block, block up, choke off, belay, barricade, block the way, bar the way, stop the way, forelay, dam up, put on the brake, scotch the wheel, lock the wheel, put a spoke in the wheel, put a stop to, traverse, contravene, interrupt, intercept, oppose, hedge in, hedge round, cut off, inerclude, interpose, interfere, intermeddle, cramp, hamper, clog, clog the wheels, cumber, encumber, incumber, handicap, choke, saddle with, load with, overload, lay, lumber, trammel, tie one's hands, put to inconvenience, incommode, discommode, discompose, hustle, corner, drive into a corner, run foul of, fall foul of, cross the path of, break in upon, thwart, frustrate, disconcert, balk, foil, faze, feaze, feeze, baffle, snub, override, circumvent, defeat, spike guns, spoil, mar, clip the wings of, cripple, put an extinguisher on, damp, dishearten, discountenance, throw cold water on, spoil sport, lay a wet blanket, throw a wet blanket on, cut the ground from under one, take the wind out of one's sails, undermine, be in the way of, stand in the way of, act as a drag, hang like a millstone round one's neck.

Opposition

VB oppose, counteract, run counter to, withstand, control, hinder, antagonize, oppugn, fly in the face of, go dead against, kick against, fall afoul of, run afoul of, set against, pit against, face, confront, cope with, make a stand, make a dead set against, set oneself against, set one's face against, protest against, vote against, raise one's voice against, disfavor, turn one's back upon, set at naught, slap in the face, slam the door in one's face, be at cross purposes, play at cross purposes, counterwork, countermine, thwart, overthwart, work against, undermine, stem, breast, encounter, stem the tide, breast the tide, stem the current, stem the flood, buffet the waves, beat up against, make head against, grapple with, kick against the pricks, contend, do battle with, do battle against, contradict, contravene, belie, go against, run against, beat against, militate against, come in conflict with, emulate, rival, spoil one's trade.

Counteraction

VB counteract, run counter, clash, cross, interfere with, conflict with, contravene, jostle, go against, run against, beat against, militate against, stultify, antagonize, block, oppose, traverse, withstand, hinder, repress, react, undo, neutralize, counterpoise, overpoise.