Act in opposition to.

synonyms: antagonise, antagonize.

Roget 179: counteract; run counter, clash, cross; interfere with, conflict with; contravene; jostle; go against, run against, beat against, militate against; stultify; antagonize, block, oppose etc. 708; traverse; withstand etc. (resist) 719; hinder etc. 706; repress etc. (restrain) 751; react etc. (recoil) 277.    undo, neutralize; counterpoise etc. (compensate) 30; overpoise^†.    ... show more

Dutch: afzetten

Oppose or check by a counteraction.

synonym: countercheck.

Roget 706: hinder, impede, filibuster [U.S.], 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 [Law]; inhibit etc. 761; shackle etc. (restrain) 751; 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 etc. (close) 261; put on the brake etc. n.; scotch the wheel, lock the wheel, put a spoke in the wheel; put a stop to etc. 142; traverse, contravene; interrupt, intercept; oppose etc. 708; hedge in, hedge round; cut off; inerclude^†.    interpose, interfere, intermeddle etc. 682.    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 [U.S.]; baffle, snub, override, circumvent; defeat etc. 731; spike guns etc. (render useless) 645; spoil, mar, clip the wings of; cripple etc. (injure) 659; put an extinguisher on; damp; dishearten etc. (dissuade) 616; 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.    ... show more

Oppose and mitigate the effects of by contrary actions:
— This will counteract the foolish actions of my colleagues.

synonyms: counterbalance, countervail, neutralize.

Roget 30: 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 etc. 27; make good; redeem etc. (atone) 952.    ... show more

Dutch: neutraliseren, opvangen

Destroy property or hinder normal operations.

synonyms: countermine, sabotage, subvert, undermine, weaken.

Roget 708: oppose, counteract, run counter to; withstand etc. (resist) 719; control etc. (restrain) 751; hinder etc. 706; 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 etc. (resist) 719; contend etc. 720; do battle with etc. (warfare) 722, do battle against.    contradict, contravene; belie; go against, run against, beat against, militate against; come in conflict with.    emulate etc. (compete) 720; rival, spoil one's trade.    ... show more