Declare invalid.

synonyms: annul, avoid, invalidate, quash, void.

Roget 162: be destroyed &c.; perish; fall to the ground; tumble, topple; go to pieces, fall to pieces; break up; crumble to dust; go to the dogs, go to the wall, go to smash, go to shivers, go to wreck, go to pot, go to wrack and ruin; go by the board, go all to smash; be all over, be all up, be all with; totter to its fall.    destroy; do away with, make away with; nullify; annual etc. 756; sacrifice, demolish; tear up; overturn, overthrow, overwhelm; upset, subvert, put an end to; seal the doom of, do in, do for, dish [Slang], undo; break up, cut up; break down, cut down, pull down, mow down, blow down, beat down; suppress, quash, put down, do a job on; cut short, take off, blot out; dispel, dissipate, dissolve; consume.    smash, crash, quell, squash, squelch, crumple up, shatter, shiver; batter to pieces, tear to pieces, crush to pieces, cut to pieces, shake to pieces, pull to pieces, pick to pieces; laniate^†; nip; tear to rags, tear to tatters; crush to atoms, knock to atoms; ruin; strike out; throw over, knock down over; fell, sink, swamp, scuttle, wreck, shipwreck, engulf, ingulf^†, submerge; lay in ashes, lay in ruins; sweep away, erase, wipe out, expunge, raze; level with the dust, level with the ground; waste; atomize, vaporize.    deal destruction, desolate, devastate, lay waste, ravage gut; disorganize; dismantle etc. (render useless) 645; devour, swallow up, sap, mine, blast, bomb, blow to smithereens, drop the big one, confound; exterminate, extinguish, quench, annihilate; snuff out, put out, stamp out, trample out; lay in the dust, trample in the dust; prostrate; tread under foot; crush under foot, trample under foot; lay the ax to the root of; make short work of, make clean sweep of, make mincemeat of; cut up root and branch, chop into pieces, cut into ribbons; fling to the winds, scatter to the winds; throw overboard; strike at the root of, sap the foundations of, spring a mine, blow up, ravage with fire and sword; cast to the dogs; eradicate etc. 301.    ... show more

Roget 756: abrogate, annul, cancel; destroy etc. 162; abolish; revoke, repeal, rescind, reverse, retract, recall; abolitionize^†; overrule, override; set aside; disannul, dissolve, quash, nullify, declare null and void; disestablish, disendow^†; deconsecrate.    disclaim etc. (deny) 536; ignore, repudiate; recant etc. 607; divest oneself, break off.    countermand, counter order; do away with; sweep away, brush away; throw overboard, throw to the dogs; scatter to the winds, cast behind.    dismiss, discard; cast off, turn off, cast out, cast adrift, cast out of doors, cast aside, cast away; send off, send away, send packing, send about one's business; discharge, get rid of etc. (eject) 297; bounce [U.S.]; fire [Slang], fire out [Slang]; sack [Slang].    cashier; break; oust; unseat, unsaddle; unthrone^†, dethrone, disenthrone^†; depose, uncrown^†; unfrock, strike off the roll; disbar, disbench^†.    be abrogated &c.; receive its quietus; walk the plank.    ... show more

Roget 773: fail, neglect, omit, elude, evade, give the go-by to, set aside, ignore; shut one's eyes to, close one's eyes to.    infringe, transgress, violate, pirate, break, trample under foot, do violence to, drive a coach and six through.    discard, protest, repudiate, fling to the winds, set at naught, nullify, declare null and void; cancel etc. (wipe off) 552.    retract, go back from, be off, forfeit, go from one's word, palter; stretch a point, strain a point.    ... show more

Roget 808: not pay etc. 807; fail, break, stop payment; become insolvent, become bankrupt; be gazetted.    protest, dishonor, repudiate, nullify, refuse payment.    pay under protest; button up one's pockets, draw the purse strings; apply the sponge; pay over the left shoulder, get whitewashed; swindle etc. 791; run up bills, fly kites.    ... show more

Roget 2: not exist etc. 1; have no existence etc. 1; be null and void; cease to exist etc. 1; pass away, perish; be extinct, become extinct etc. adj.; die out; disappear etc. 449; melt away, dissolve, leave not a rack behind; go, be no more; die etc. 360.    annihilate, render null, nullify; abrogate etc. 756; destroy etc. 162; take away; remove etc. (displace) 185; obliterate, extirpate.    ... show more

Dutch: casseren, oblitereren, vernietigen

Show to be invalid.

synonym: invalidate.

Make ineffective by counterbalancing the effect of.

synonyms: negate, neutralise, 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