invalidate

in·val·i·date  (n-vl-dt)

tr.v. in·val·i·dat·ed, in·val·i·dat·ing, in·val·i·dates

To make invalid; nullify.

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in·vali·dation n.

in·vali·dator n.

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invalidate [ɪnˈvælɪˌdeɪt]

vb (tr)

1. to render weak or ineffective, as an argument

2. (Law) to take away the legal force or effectiveness of; annul, as a contract

invalidation  n

invalidator  n

Thesaurus

Verb	1.	invalidate - declare invalid; "The contract was annulled"; "void a plea" annul, nullify, void, quash, avoid strike down, cancel - declare null and void; make ineffective; "Cancel the election results"; "strike down a law" break - invalidate by judicial action; "The will was broken" stet - printing: cancel, as of a correction or deletion validate, formalise, formalize - declare or make legally valid
	2.	invalidate - make invalid for use; "cancel cheques or tickets" cancel score, mark - make underscoring marks
	3.	invalidate - show to be invalid nullify negate, contradict - prove negative; show to be false validate - prove valid; show or confirm the validity of something
	4.	invalidate - take away the legal force of or render ineffective; "invalidate a contract" vitiate, void alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue" validate - make valid or confirm the validity of; "validate a ticket"

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invalidate

verb

1. nullify, cancel, annul, undermine, weaken, overthrow, undo, quash, overrule, rescind, abrogate, render null and void An official decree invalidated the vote.
nullify validate, sanction, authorize, strengthen, ratify, empower

2. disprove, refute, negate, discredit, contradict, rebut, give the lie to, make a nonsense of, prove false, blow out of the water (slang), controvert, confute Neither point invalidates my argument.

Translations

invalidate [ɪnˈvælɪdeɪt] VT [+ document, argument, theory] → invalidar; [+ contract] → anular, invalidar

invalidate [ɪnˈvælɪdeɪt] vt → invalider, annuler
invalid car invalid carriage n (British) → voiture f pour handicapé
invalid chair n (British) → fauteuil m pour handicapé

invalidate

vt → ungültig machen; theory, feelings → entkräften

invalidate [ɪnˈvælɪˌdeɪt] vt (law, contract) → invalidare; (argument, conclusion) → smentire
the will was invalidated → il testamento è stato invalidato