Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To make invalid; nullify.

from The Century Dictionary.

  • To render invalid; destroy the strength or validity of; render of no force or effect.
  • Specifically In law, to deprive of binding force or legal efficacy: as, fraud invalidates a contract.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To make invalid. Esp. applied to contract law.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb show to be invalid
  • verb take away the legal force of or render ineffective
  • verb declare invalid
  • verb make invalid for use

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From in- +‎ Latin valere ("to be strong"); literally, “to make not strong”.

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Examples

  • FARRELL: I'm afraid I have to say that I think if the west started getting into the game of asking Muslim clerics to issue fatwas then it would put the clerics in a very difficult situation and it would kind of invalidate the fatwa if they did it because they would look like they're doing it at the behest of the west.

    CNN Transcript Jan 20, 2006 2006

  • Flash forward to the present, where Weaver and Quaintance last week filed a request in Superior Court to "invalidate" local governments 'approval of the hotel for federal stimulus funding.

    Record Article Feed 2010

  • But at the same time it would kind of invalidate the whole series 'intent - choosing to demure about the hard, bloody climax doesn't pay proper respect to the costly sacrifices of sexual responsibilism that the books so ennoble.

    Gawker 2010

  • So Physicist Husband is helping to work out the airflow issues, perhaps by installing a small fan or upgrading to a better colander, which would kind of invalidate the point of using stuff we already had around the house.

    MAKE Magazine 2009

  • So Physicist Husband is helping to work out the airflow issues, perhaps by installing a small fan or upgrading to a better colander, which would kind of invalidate the point of using stuff we already had around the house.

    MAKE Magazine 2009

  • So Physicist Husband is helping to work out the airflow issues, perhaps by installing a small fan or upgrading to a better colander, which would kind of invalidate the point of using stuff we already had around the house.

    MAKE Magazine 2009

  • Now it would sure be nice to know when something changes, so if California does sink, Iraq or Canada become the 51 st state, you don't have to watch CNN and ask all your clients to either wait for the cache to update, or "invalidate" the cache.

    MSDN Blogs 2008

  • Now it would sure be nice to know when something changes, so if California does sink, Iraq or Canada become the 51 st state, you don't have to watch CNN and ask all your clients to either wait for the cache to update, or "invalidate" the cache.

    MSDN Blogs 2008

  • Now it would sure be nice to know when something changes, so if California does sink, Iraq or Canada become the 51 st state, you don't have to watch CNN and ask all your clients to either wait for the cache to update, or "invalidate" the cache.

    MSDN Blogs Steve.Lasker 2008

  • Now it would sure be nice to know when something changes, so if California does sink, Iraq or Canada become the 51 st state, you don't have to watch CNN and ask all your clients to either wait for the cache to update, or "invalidate" the cache.

    MSDN Blogs 2008

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