invalid 1 of 3

adjective (1)

ˈin-və-ləd How to pronounce invalid (audio)
Definition of invalidnext
as in fragile
chronically or repeatedly suffering from poor health an old and now invalid woman who rarely gets out anymore

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invalid

2 of 3

adjective (2)

(ˌ)in-ˈva-ləd How to pronounce invalid (audio)
1
as in null
having no legal or binding force the treaty is invalid once one side violates it

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2
as in erroneous
not being in agreement with what is true that's an invalid assumption on your part

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3
as in unreasonable
not using or following good reasoning an argument which has one untrue premise is invalid

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4
as in unsupported
having no basis in reason or fact an invalid claim that can be easily disproved by the facts

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invalid

3 of 3

verb

as in to impair

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of invalid
Adjective
You can also be charged with election fraud if you’re caught buying votes, adding invalid ballots to dropoff boxes and threatening, intimidating or interfering with voters, according to Werksman Jackson Quinn and Mason LLP. — Sacbee.com, 27 Oct. 2026 At one point, Green stops to back up Officer Thompson, who’s dealing with a driver whose temporary license plate appears to be invalid. — Théoden Janes, Charlotte Observer, 26 Oct. 2026
Verb
If this is ascertained, the BBC quotes an LA attorney saying this would render Hackman’s will invalid, and mean his children could have a claim to the estate. — Caroline Frost, Deadline, 16 Mar. 2025 DeSantis's office has said all options are on the table for their fight, but a legal ruling invaliding the agreement that currently gives Disney near-total control of the district would be the easiest resolution for the governor's headache. — Jack Birle, Washington Examiner, 8 Apr. 2023 See All Example Sentences for invalid
Recent Examples of Synonyms for invalid
  1. fragile
  2. null
  3. erroneous
  4. unreasonable
  5. unsupported
  6. impair
  7. weak
  8. void
Adjective
  • Furthermore, custom rigid shapes for every new material are expensive, fragile, and difficult to scale.
    — Mrigakshi Dixit, Interesting Engineering, 2 Nov. 2026
  • Mark DiCamillo, the poll’s director, said previous surveys showed support for Proposition 40 has been fragile, and the most recent shows its prospects have dimmed as election day approaches.
    — Seema Mehta, Los Angeles Times, 29 Oct. 2026
Definition of fragile
Adjective
  • For one, null results—in this case, findings that are not unusual or revelatory—are still useful.
    — Jackie Flynn Mogensen, Scientific American, 4 June 2026
  • However, in the face of an increasing number of null results, most notably in studies published in late 2025, most physicists now agree that this sterile neutrino doesn’t exist.
    — Quanta Magazine, Quanta Magazine, 8 Apr. 2026
Definition of null
Adjective
  • Rather than pulling Herta’s IndyCar results from the official scoring, the team apparently relied on IndyCar’s erroneous website.
    — Jonathan M. Gitlin, ArsTechnica, 2 Nov. 2026
  • According to a lawsuit, a coding error resulted in erroneous scores being generated and reported to third parties over a three-week period between March and April 2022.
    — Brian Sloan,Dan Avery, CNBC, 23 Oct. 2026
Definition of erroneous
Adjective
  • That triggers First Amendment protection, and that means there cannot be viewpoint discrimination or unreasonable restrictions that are inconsistent with the speech activities imposed on the journalists.
    — Ted Johnson, Deadline, 30 Oct. 2026
  • Frimpong concluded that plaintiffs were likely to prove the practice violated the 4th Amendment’s protection against unreasonable seizures and the 5th Amendment’s guarantee of equal protection.
    — Brittny Mejia, Los Angeles Times, 29 Oct. 2026
Definition of unreasonable
Adjective
  • Its gravity is not measured by a relatively short list of maimings and deaths, nor can it be written off as perception unsupported by data.
    — Justin Davidson, Curbed, 5 Nov. 2026
  • On the one hand, this shows just how strongly officers accept the principle of civilian control—a posture reinforced precisely because Hegseth has proved willing to punish even unsupported allegations of military insubordination.
    — Peter D. Feaver, Foreign Affairs, 5 Nov. 2026
Definition of unsupported
Verb
  • One person was killed and several others injured Saturday morning when a driver suspected of being impaired struck a group of more than 40 cyclists in North Carolina, authorities said.
    — News Editor, CBS News, 8 Nov. 2026
  • Police are continuing to investigate, including whether or not the driver who struck Schultz’s vehicle might have been impaired from alcohol consumption.
    — Philip Potempa, Chicago Tribune, 5 Nov. 2026
Definition of impair
Adjective
  • Trump was implying Ukraine was in a weak negotiating position and did not have the military resources to fight against Russia’s invasion of Ukraine.
    — Tom Jurkowsky, Baltimore Sun, 2 Nov. 2026
  • And some players are turning on the season as seen by them letting the Jaguars tear through weak tackle attempts to the tune of 183 rushing yards and three passing TDs by Trevor Lawrence.
    — Armando Salguero OutKick, FOXNews.com, 2 Nov. 2026
Definition of weak
Adjective
  • Because of that, the Pyles believe the permit should be void.
    — Matthew Adams, Fort Worth Star-Telegram, 8 Oct. 2026
  • At the void deck was a group of old men gathered around a stone table, bottles of beer open before them.
    — Rachel Heng, New Yorker, 4 Oct. 2026
Definition of void

Browse Nearby Words

in vain
invalid
invalidate
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Cite this Entry

“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 9 Nov. 2026.

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