Definitions

from The Century Dictionary.

  • Not valid; of no force, weight, or cogency; weak.
  • In law, having no validity or binding force; wanting efficacy; null; void: as, an invalid contract or agreement.
  • Deficient in health; infirm; weak; sick.
  • noun An infirm or sickly person; one who is affected by disease or disabled by any infirmity.
  • noun Hence Something that is damaged, or the worse for wear, but not so much as to be wholly unserviceable.
  • To affect with disease; render an invalid: chiefly in the past participle.
  • To register as an invalid; enroll on the list of invalids in the military or naval service; give leave of absence from duty on account of ill health.
  • To cause one's self to be registered as an invalid.

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

  • adjective Of no force, weight, or cogency; not valid; weak.
  • adjective (Law) Having no force, effect, or efficacy; void; null.
  • noun A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health who is unable to care for himself.
  • adjective Not well; feeble; infirm; sickly.
  • transitive verb To make or render invalid or infirm.
  • transitive verb To classify or enroll as an invalid.

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

  • adjective Not valid; not true, correct, acceptable or appropriate.
  • noun One who is confined to home or bed because of illness, disability or injury
  • noun Any person with a disability.
  • adjective Intended for use by an invalid.
  • verb UK To exempt from duty because of injury or ill health.

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

  • adjective no longer valid
  • adjective having no cogency or legal force
  • verb force to retire, remove from active duty, as of firemen
  • verb injure permanently
  • noun someone who is incapacitated by a chronic illness or injury

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin invalidus ("infirm, weak"), from in- ("not") + validus ("strong")

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Examples

  • This revision adds requested functionality for outputting invalid or outdated standard numbers represented in subfields $y or $z in MARC 010, 020, 022, 024, 028, and 037 to the @invalid in MODS.

    MARC21 slim to MODS 3.2 stylesheet David Bigwood 2007

  • This revision adds requested functionality for outputting invalid or outdated standard numbers represented in subfields $y or $z in MARC 010, 020, 022, 024, 028, and 037 to the @invalid in MODS.

    Archive 2007-01-28 David Bigwood 2007

  • 340 Chapter 11: Searching and browsing Figure 11.4 Ferret throws an exception when given an invalid search string. @invalid = true end end end Here we tell rescue to catch the specific exception raised by Ferret parsing errors, and then set the @invalid instance variable so that we can put an appropriate message in the view (Figure 11.5): Listing 11.13 app/views/community/search. rhtml

    Recently Uploaded Slideshows midpoint 2009

  • Gadhafi to French President Nicolas Sarkozy and British Prime Minister David Cameron and U.N. Secretary General Ban Ki-moon in which he called "invalid" the United Nations resolution passed last week authorizing the use of force against the regime in order to halt its slaughter of rebels and opposition figures.

    WSJ.com: What's News US 2011

  • Soon afterwards, Attia ruled the woman was not Jewish and that therefore the marriage was invalid from the start, and the couple did not need a divorce.

    the lot of an israeli jewish convert 2008

  • Soon afterwards, Attia ruled the woman was not Jewish and that therefore the marriage was invalid from the start, and the couple did not need a divorce.

    25 « September « 2008 « Niqnaq 2008

  • He's not feeling great and it's the latest craze in invalid food in our house.

    August 2007 2007

  • Tried to click on the challenge and got a no-can-do message about in invalid URL.

    I like to win things. « A Bird’s Nest 2007

  • He's not feeling great and it's the latest craze in invalid food in our house.

    Rainy day 2007

  • He also produces a "Wanda Errors Report", which identifies certain invalid ballots, such as duplicates from the same registered voters.

    Sound Politics: Mail Ballot Lifecycle 2006

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