Synonyms and Antonyms of invalidate
to put an end to by formal action <those nations eventually invalidated their trade agreement> Synonyms abate, abrogate, annul, avoid, cancel, disannul, dissolve, abolish, negate, null, nullify, quash, repeal, rescind, roll back, strike down, vacate, voidRelated Words countermand, override, overrule, overturn, veto; abort, call, call off, drop, recall, retract, reverse, revoke, suspend, withdraw; ban, enjoin, forbid, outlaw, prohibit; disallow, dismiss, reject; annihilate, break down, eliminate, eradicate, erase, liquidate, remove, throw out, write offNear Antonyms enact, lay down, legislate; establish, found, institute; formalize, legalize, legitimate, legitimize, validate; pass, ratify; allow, approve, authorize, clear, endorse (also indorse), permit, sanction, warrant; command, decree, mandate, order, prescribe
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