What does invalid mean?

Definitions for invalid
ˈɪn və lɪd; Brit. -ˌlidin·valid

Here are all the possible meanings and translations of the word invalid.

Princeton's WordNet

  1. invalid, shut-inadjective

    someone who is incapacitated by a chronic illness or injury

  2. invalidadjective

    having no cogency or legal force

    "invalid reasoning"; "an invalid driver's license"

  3. invalidverb

    no longer valid

    "the license is invalid"

  4. invalidverb

    force to retire, remove from active duty, as of firemen

  5. disable, invalid, incapacitate, handicapverb

    injure permanently

    "He was disabled in a car accident"


  1. invalidnoun

    One who is confined to home or bed because of illness, disability or injury

  2. invalidnoun

    Any person with a disability.

  3. invalidverb

    To exempt from duty because of injury or ill health.

    He was invalided home after the car crash.

  4. invalidadjective

    Not valid; not true, correct, acceptable or appropriate.

  5. invalidadjective

    Intended for use by an invalid.

Webster Dictionary

  1. Invalidadjective

    of no force, weight, or cogency; not valid; weak

    Etymology: [See Invalid, n.]

  2. Invalidadjective

    having no force, effect, or efficacy; void; null; as, an invalid contract or agreement

    Etymology: [See Invalid, n.]

  3. Invalidadjective

    a person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health

    Etymology: [See Invalid, n.]

  4. Invalidnoun

    not well; feeble; infirm; sickly; as, he had an invalid daughter

    Etymology: [See Invalid, n.]

  5. Invalidverb

    to make or render invalid or infirm

    Etymology: [See Invalid, n.]

  6. Invalidverb

    to classify or enroll as an invalid

    Etymology: [See Invalid, n.]


  1. invalid

    The name invalid is reserved by the Internet Engineering Task Force in RFC 2606 as a domain name that may not be installed as a top-level domain in the Domain Name System of the Internet.

Chambers 20th Century Dictionary

  1. Invalid

    in-val′id, adj. without value, weight, or cogency: having no effect: void: null.—adj. In′valid, deficient in health, sick, weak.—n. one who is weak: a sickly person: one disabled for active service, esp. a soldier or sailor.—v.t. to make invalid or affect with disease: to enrol on the list of invalids.—v.t. Inval′idāte, to render invalid: to weaken or destroy the force of.—ns. Invalidā′tion; In′validhood, In′validism; In′validing, the return home, or to a more healthy climate, of soldiers or sailors who have been rendered incapable of active duty by wounds or the severity of foreign service; Invalid′ity, Inval′idness, want of cogency: want of force.

Dictionary of Nautical Terms

  1. invalid

    A maimed or sick soldier or sailor.--To invalid is to cause to retire from active service from inability.

Military Dictionary and Gazetteer

  1. invalid

    A soldier who has been wounded, or has suffered in his health, and in consequence of his good conduct has been recommended to a certain provision for life. Chelsea Hospital is the place allotted for the reception of such objects of public gratitude and benevolence in England; the Soldiers’ Home, in Washington, D. C., in the United States, and the Hôtel des Invalides, at Paris, France. In England numbers of invalids are, however, allowed to reside where they choose, and are then known as “out-pensioners.”

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  1. Chaldean Numerology

    The numerical value of invalid in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of invalid in Pythagorean Numerology is: 8

Examples of invalid in a Sentence

  1. Jeff Flake:

    I must also say that separate and apart from this nomination and the facts that pertain to it, I do not believe that the claim of sexual assault is invalid because a 15-year-old girl didn't promptly report the assault to the authorities, as the President of the United States said just two days ago.

  2. Andrea Kavanagh:

    It's not just hurting the stocks. It's making the study of them invalid.

  3. Louis Uccellini:

    Still, it's important that we scrutinize questionable measurements and reject those that scientists deem invalid to ensure the public's continued confidence in the U.S. climate record.

  4. Ehsan Sehgal:

    Every judicial verdict on whatever crime defines and describes the context and conception of the law and executes transparent justice accordingly. Whereas, the presiding judge and a panel of judges stay away from their personal feelings of perception, sympathy, anger, or revenge on any point and measure; otherwise, verdict falls under the failure of fair-decision and becomes morally and legally ineffective and invalid.

  5. Democratic Rep. Jerry Nadler:

    Well, the questions we will ask Attorney General Matt Whitaker will be about Attorney General Matt Whitaker expressed hostility to the investigation, how Attorney General Matt Whitaker can possibly supervise it when Attorney General Matt Whitaker's expressed, when Attorney General Matt Whitaker's come out and said that the investigation is invalid.

Images & Illustrations of invalid

  1. invalidinvalidinvalidinvalidinvalid

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"invalid." Definitions.net. STANDS4 LLC, 2021. Web. 16 Sep. 2021. <https://www.definitions.net/definition/invalid>.

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(of a glutinous liquid such as paint) not completely dried and slightly sticky to the touch
  • A. ambidextrous
  • B. ravening
  • C. tacky
  • D. butch

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