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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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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invalid

3 of 3

verb

as in to impair

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Dissimilar Words

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
As a result, this route was RPKI-valid and would not be at risk of being dropped by ASes that reject RPKI-invalid routes. — Dan Goodin, ArsTechnica, 2 Sep. 2026 Not only is Le Batard pandering, but his gripe is also invalid. — Bobby Burack Outkick, FOXNews.com, 1 Sep. 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
  • Indonesia’s blackouts in mid-2026, in part triggered by the events in the Middle East, demonstrated how fragile the region’s energy security is.
    — Brian Wong, Fortune, 6 Sep. 2026
  • And ultimately, asked to prove themselves all over again to keep their often-fragile NFL dreams alive.
    — Omar Kelly, Miami Herald, 6 Sep. 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
  • The lawsuit alleges that South Dakota’s rollout of the proof-of-citizenship requirement has disqualified eligible voters over erroneous minutiae and failed to offer them a realistic shot at fixing problems with their registration application.
    — John Hult, States Newsroom, 28 Aug. 2026
  • Towers told ProPublica that the audit had reached erroneous conclusions, that the auditors did not give him the opportunity to fully defend his work and that the journal’s willingness to stand by the study is proof that his research is sound.
    — Amy Yurkanin, ProPublica, 24 Aug. 2026
Definition of erroneous
Adjective
  • The imposition of the tariffs stemmed from a breakdown in negotiations between the two countries in August, with each claiming the other side had unreasonable requests that would be detrimental to their respective country’s workers.
    — Washington Examiner Staff, The Washington Examiner, 8 Sep. 2026
  • Drop one task that doesn’t need to happen today, and ask for clarification if a deadline feels unreasonable.
    — Tarot.com, Baltimore Sun, 7 Sep. 2026
Definition of unreasonable
Adjective
  • Educational technology products built on generative AI often make unsupported claims of improving young students' learning and critical thinking skills, according to an APA report co-authored by Barnes that published on Thursday.
    — Tom Huddleston Jr., CNBC, 5 Sep. 2026
  • Such accusations, while unsupported, undoubtedly place Magnus, a top Disney executive, in an uncomfortable position.
    — Bobby Burack OutKick, FOXNews.com, 4 Sep. 2026
Definition of unsupported
Verb
  • The Folsom Police Department will hold a sobriety checkpoint Friday night to identify drivers suspected of being impaired by alcohol or drugs.
    — Haley Parsley, Sacbee.com, 2 Sep. 2026
  • Riggs said the Teamsters’ safety argument is weakened by the inconsistent safety record of human truck drivers, who have fallen asleep at the wheel or driven while distracted or otherwise impaired.
    — Los Angeles Times, Los Angeles Times, 29 Aug. 2026
Definition of impair
Adjective
  • Many African economies are in a much weaker economic position compared to the strong 2015-2016 El Niño, the IIF report said, largely due to higher oil prices, which have driven up transport costs, and a strong US dollar.
    — Paige Bruton, semafor.com, 2 Sep. 2026
  • Too much nitrogen in the spring creates a weak root system that isn’t able to withstand the heat and drought in summer.
    — Megan Hughes, Better Homes & Gardens, 2 Sep. 2026
Definition of weak
Adjective
  • Buss said any such vote is void because the sale cannot be completed without her approval.
    — Steve Henson, Los Angeles Times, 25 Aug. 2026
  • After those dates, any approvals would become invalid or void, as if they had never been granted.
    — City News Service, Daily News, 20 Aug. 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 Sep. 2026.

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