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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Antonyms & Near Antonyms

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

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

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Antonyms & Near Antonyms
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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Antonyms & Near Antonyms

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
This is not entirely invalid, but controlling for all the various factors that will affect crash rate gives more meaningful comparisons. — Brad Templeton, Forbes.com, 7 July 2026 Rather than defend the statute, Attorney General Kris Kobach filed a joint motion siding with the DOJ in its interpretation that the law is invalid. — Matthew Kelly updated June 25, Kansas City Star, 25 June 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
  • The fragile peace didn’t hold, but the market’s memory is long enough to remember what was happening in February and in June.
    — David Goldman, CNN Money, 3 Aug. 2026
  • The fragile dragon peace doesn’t hold long enough for the Targaryens to sort through their family business.
    — Amanda Whiting, Vulture, 3 Aug. 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
  • Reports based on the erroneous California Crash Reporting System entry surfaced Monday night, prompting Shanahan to address the crash Tuesday.
    — Cam Inman, Mercury News, 28 July 2026
  • However, the vast majority of these folks did not actually vote, and many asked for their erroneous registrations to be purged, contrary to the Republican fantasy that millions of noncitizens are all gunning to illegally vote.
    — New York Daily News Editorial Board, New York Daily News, 26 July 2026
Definition of erroneous
Adjective
  • From the second Eldridge was drafted, a little devil appeared on your shoulder and whispered unreasonable expectations into your ear.
    — Grant Brisbee, New York Times, 13 July 2026
  • In a poll on the post, 95% voted that this parent is NOT being unreasonable.
    — Melissa Willets, Parents, 12 July 2026
Definition of unreasonable
Adjective
  • Sherrill rejected that request Tuesday, calling it unsupported by law.
    — Kaelan Deese, The Washington Examiner, 30 July 2026
  • Ashley accused Doug of psychologically abusing her, but prosecutors argued the allegations were unsupported by the evidence.
    — Stephanie Nolasco, FOXNews.com, 25 July 2026
Definition of unsupported
Verb
  • Hwang suffered a traumatic brain injury from the attack, leading to ataxia, a neurological disorder that impairs movement and muscle control, and occasional seizures.
    — Kansas City Star, Kansas City Star, 31 July 2026
  • Chronic stress also reshapes the prefrontal cortex, impairing our ability to manage stress overall.
    — Erin Clabough, The Conversation, 31 July 2026
Definition of impair
Adjective
  • Last fall, major lenders reported that business was booming despite a sluggish art market, arguing that collectors preferred borrowing against valuable works rather than selling into weaker conditions.
    — Daniel Cassady, ARTnews.com, 29 July 2026
  • Goods consumption is weak, while services consumption is outperforming, running above headline GDP growth, Liao said.
    — Nicholas Gordon, Fortune, 29 July 2026
Definition of weak
Adjective
  • But, as evidenced by the response on Instagram, there was a void Big Daddy Kane needed to fill.
    — Kyle Eustice, VIBE.com, 14 July 2026
  • Petition sheets circulated by people who aren’t residents of Idaho are considered void.
    — Becca Savransky, Idaho Statesman, 14 July 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 5 Aug. 2026.

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