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View synonyms for invalidate

invalidate

[ in-val-i-deyt ]

verb (used with object)

, in·val·i·dat·ed, in·val·i·dat·ing.
  1. to render invalid; discredit.

    Synonyms: rebut, refute, disprove, impair, weaken

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


invalidate

/ ɪnˈvælɪˌdeɪt /

verb

  1. to render weak or ineffective, as an argument
  2. to take away the legal force or effectiveness of; annul, as a contract
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • inˌvaliˈdation, noun
  • inˈvaliˌdator, noun
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Other Words From

  • in·vali·dation noun
  • in·vali·dator noun
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Word History and Origins

Origin of invalidate1

First recorded in 1640–50; invalid 2 + -ate 1
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Example Sentences

A data transfer mechanism called Standard Contractual Clauses was not invalidated by the CJEU.

A group of gig workers and the SEIU labor union filed a petition this week in the California Supreme Court seeking to invalidate Prop.

One hundred and twenty-eight members of the House of Representatives and seven senators participated in efforts to overturn legally certified elections and invalidate the votes of millions of people in numerous states.

A San Diego Superior Court judge agreed with the criticisms, and invalidated the plan.

When Democrats in Oregon invalidated one of Hayes’s electors, the contest became stalemated at 184 votes apiece.

However, in an encouraging sign for clinics—and common sense—the narrow ruling does not invalidate buffer zones in general.

While the Court did not invalidate Section 5, it did rule Section 4(b) unconstitutional.

The gun lobby is currently funding lawsuits all over America, trying to invalidate local, state, and federal gun restrictions.

Is the Supreme Court going to invalidate campaign finance laws further in the aftermath of its 2010 decision in Citizens United?

A consortium of scientists and the American Civil Liberties Union eventually sued to invalidate the patents a few years ago.

Here and there roving parties appeared, but having no recognized leaders, their existence did not invalidate the treaty.

A foreign patent in order to invalidate an American patent must antedate the invention patented.

He has indeed fought the letter, and perhaps come off victorious; but does he invalidate its spirit?

Provided, that no omission of any of the foregoing duties on the part of an Umpire shall of itself invalidate a game or match.

This does not by any means invalidate the idea that Voice Culture is properly a subject for scientific regulation.

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invalidinvalidism