Table of Contents POS
HYPHEN
COUNT IN NET
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS
ROGET THESAURUS

WORDNET DICTIONARY

Verb invalidate has 4 senses

• invalidate(v = verb.social) annul, avoid, nullify, quash, void - declare invalid; "The contract was annulled"; "void a plea"
is one way to cancel, strike down
Derived forms noun invalidation₁, noun invalidator₁
Antonym: validate
Sample sentences:
Somebody ----s something
Something ----s something

• invalidate(v = verb.communication) cancel - make invalid for use; "cancel cheques or tickets"
is one way to mark, score
Sample sentence:
Somebody ----s something

• invalidate(v = verb.cognition) nullify - show to be invalid; Array
is one way to contradict, negate
Antonym: validate
Sample sentences:
Somebody ----s something
Something ----s something

• invalidate(v = verb.change) vitiate, void - take away the legal force of or render ineffective; "invalidate a contract"
is one way to alter, change, modify
Derived form noun invalidation₁
Antonym: validate
Sample sentences:
Somebody ----s something
Something ----s something

CIDE DICTIONARY

OXFORD DICTIONARY

THESAURUS

invalidate

abate, abolish, abrogate, annihilate, annul, belie, blow sky-high, blow up, bring to naught, bring to nothing, buffer, cancel, cancel out, come to nothing, counterbalance, countermand, counterorder, deflate, disannul, disconfirm, discredit, disprove, disqualify, do away with, explode, expose, frustrate, make void, negate, negativate, negative, neutralize, nullify, offset, override, overrule, prove the contrary, puncture, quash, recall, recant, renege, repeal, rescind, retract, reverse, revoke, set aside, show up, stultify, suspend, thwart, undercut, undo, unfit, vacate, vitiate, void, waive, withdraw, write off

ROGET THESAURUS

invalidate

Impotence

VB be impotent, not have a leg to stand on, vouloir rompre l'anguille au genou, vouloir prendre la lune avec les dents, collapse, faint, swoon, fall into a swoon, drop, go by the board, go by the wayside, go up in smoke, end in smoke, render powerless, deprive of power, disable, disenable, disarm, incapacitate, disqualify, unfit, invalidate, deaden, cramp, tie the hands, double up, prostrate, paralyze, muzzle, cripple, becripple, maim, lame, hamstring, draw the teeth of, throttle, strangle, garrotte, garrote, ratten, silence, sprain, clip the wings of, put hors de combat, spike the guns, take the wind out of one's sails, scotch the snake, put a spoke in one's wheel, break the neck, break the back, unhinge, unfit, put out of gear, unman, unnerve, enervate, emasculate, castrate, geld, alter, neuter, sterilize, fix, shatter, exhaust, weaken.

Undueness

VB be undue, not be due, infringe, encroach, trench on, exact, arrogate, arrogate to oneself, give an inch and take an ell, stretch a point, strain a point, usurp, violate, do violence to, disfranchise, disentitle, disqualify, invalidate, relax, misbehave, misbecome.

Confutation

VB confute, refute, disprove, parry, negative, controvert, rebut, confound, disconfirm, redargue, expose, show the fallacy of, defeat, demolish, break, overthrow, overturn scatter to the winds, explode, invalidate, silence, put to silence, reduce to silence, clinch an argument, clinch a question, give one a setdown, stop the mouth, shut up, have, have on the hip, not leave a leg to stand on, cut the ground from under one's feet, be confuted, fail, expose one's weak point, show one's weak point, counter evidence.

For further exploring for "invalidate" in Webster Dictionary Online