7 results for: invalidate

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

in·val·i·date

Audio Help [in-val-i-deyt] Pronunciation Key

–verb (used with object), -dat·ed, -dat·ing.

1.	to render invalid; discredit.

2.	to deprive of legal force or efficacy; nullify.

[Origin: 1640–50; invalid² + -ate¹

]

—Related forms

in·val·i·da·tion, noun

in·val·i·da·tor, noun

—Synonyms 1. weaken, impair; disprove, refute, rebut.

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
invalidate

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American Heritage Dictionary - Cite This Source - Share This

in·val·i·date Audio Help (ĭn-vāl'ĭ-dāt') Pronunciation Key
tr.v. in·val·i·dat·ed, in·val·i·dat·ing, in·val·i·dates
To make invalid; nullify.

in·val'i·da'tion n., in·val'i·da'tor n.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

WordNet - Cite This Source - Share This

invalidate
verb
1.	declare invalid; "The contract was annulled"; "void a plea" [ant: formalise]
2.	make invalid for use; "cancel cheques or tickets" [syn: cancel]
3.	show to be invalid [ant: validate]
4.	take away the legal force of or render ineffective; "invalidate a contract" [ant: validate]

Kernerman English Multilingual Dictionary (Beta Version) - Cite This Source - Share This
inˈvalidate [-deit] verb

to make invalid

Arabic:	يُبْطِل، يُلْغي، يَنْقُض
Chinese (Simplified):	使无效
Chinese (Traditional):	使無效
Czech:	zrušit platnost
Danish:	gøre ugyldig
Dutch:	ongeldig maken
Estonian:	kehtetuks muutma
Finnish:	mitätöidä
French:	annuler
German:	ungültig machen
Greek:	ακυρώνω
Hungarian:	érvénytelenít
Icelandic:	ógilda
Indonesian:	membatalkan
Italian:	invalidare

Japanese:	無効にする
Korean:	…을 무효로 하다
Latvian:	atzīt par spēkā neesošu; padarīt nederīgu
Lithuanian:	(pa)daryti negaliojantį
Norwegian:	gjøre ugyldig; underkjenne
Polish:	unieważnić
Portuguese (Brazil):	invalidar
Portuguese (Portugal):	invalidar
Romanian:	a invalida; a anula
Russian:	делать недействительным
Slovak:	zrušiť platnosť
Slovenian:	razveljaviti
Spanish:	anular, invalidar
Swedish:	göra ogiltig
Turkish:	geçersiz, *hükümsüz kılmak

See also: invalid

Merriam-Webster's Dictionary of Law - Cite This Source - Share This

Main Entry: in·val·i·date
Pronunciation: in-'va-l&-"dAt
Function: transitive verb
: to make or declare invalid <the high court invalidating the statute> —in·val·i·da·tion /in-"va-l&-'dA-sh&n/ noun

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Invalidate

In*val"i*date\, v. t. [imp. & p. p. Invalidated; p. pr. & vb. n. Invalidating.] [From Invalid null.] To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

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