quash
verb
1 the Court of Appeal may quash the sentence:
cancel, reverse, rescind, repeal, revoke, retract, countermand, withdraw, take back, rule against, disallow, overturn, override, overrule, veto, set aside, overthrow, repudiate, annul, nullify, declare null and void, invalidate, render invalid, negate, void, abrogate;
Law vacate;
archaic recall.
▷antonyms validate.
2 we want to quash these horrible suggestions:
put an end to, stamp out, put a stop to, end, finish, get rid of, crush, put down, check, crack down on, curb, nip in the bud, thwart, frustrate, squash, quell, subdue, suppress, repress, quench, extinguish, stifle, abolish, terminate;
beat, overcome, defeat, rout, destroy, demolish, annihilate, wipe out;
informal squelch, put the kibosh on, clobber;
rare extirpate.
▷antonyms bring about, prompt.
quash Oxford Dictionary of English