baseless

adjective

Definition of baselessnext
as in unreasonable
having no basis in reason or fact baseless rumors that the baseball player was using steroids

Synonyms & Similar Words

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Antonyms & Near Antonyms

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 baseless Trump’s obsession with baseless election fraud claims and threats to rig or militarize our elections won’t help the recent college grad who’s sent out 300 resumes but can’t get a job. — S.e. Cupp, New York Daily News, 8 Oct. 2026 Homeland Security Secretary Markwayne Mullin publicly claimed in July — without providing evidence — that there may be more than 190,000 such voters on California rolls, a claim California officials dismissed as baseless. — Kevin Rector, Los Angeles Times, 29 Sep. 2026 Supporters of the three men said the allegations were baseless and contradicted by documentary evidence. — ABC News, 23 Sep. 2026 The grand jury and Jackson County District Attorney Angel Myers McIlrath both concluded those allegations were baseless. — Adam Sabes, FOXNews.com, 22 Sep. 2026 When Arévalo was elected in 2023, her office tried to overturn the results, alleging irregularities that international observers found baseless. — Will Freeman, The Atlantic, 20 Sep. 2026 This Sunday on 60 Minutes, Patrick Clancy talks about his grief, his memories of his children, and the baseless conspiracy theories that flooded social media since his ex-wife's murder trial. — CBS News, 16 Sep. 2026 At Friday’s hearing, Hearn’s lawyer Levin argued to Edelman that a dismissal with prejudice was required to protect Hearn from being indicted again on baseless charges. — Dan Mangan, CNBC, 4 Sep. 2026 According to the popular—and scientifically baseless—myth, daddy longlegs spiders are among the most venomous spiders, but their fangs are too short to bite humans. — Melissa Petruzzello, Encyclopedia Britannica, 2 Sep. 2026
Recent Examples of Synonyms for baseless
  1. unreasonable
  2. unfounded
  3. groundless
  4. unsubstantiated
Adjective
  • But Michael Edney, who worked at the OLC under Bush, said the opinion’s reading of executive privilege was not unreasonable, given the importance that some presidents place on outside consultation.
    — Perry Stein, Washington Post, 18 Oct. 2026
  • Both sides have accused each other of being unreasonable and of ignoring practical concerns about voting and election security, though in very different ways.
    — Kevin Rector, Los Angeles Times, 17 Oct. 2026
Definition of unreasonable
Adjective
  • The pullback isn't totally unfounded given the problems in its medical devices business.
    — Kevin Stankiewicz, CNBC, 13 Oct. 2026
  • Its inclusion in the documentary has provided ammunition for Musk supporters and his lawyers to discredit the film, pointing to an unfounded conspiracy theory about SpaceX’s Starlink satellites interfering in the election.
    — ABC News, ABC News, 12 Oct. 2026
Definition of unfounded
Adjective
  • Ye Khaung Kyaw and the two other men charged in connection with the case have said the accusations against them are groundless.
    — Arkansas Online, Arkansas Online, 24 Sep. 2026
  • Social media in South Korea have been filled with messages stoking fears about safety on Jeju, with some spreading groundless rumors and deriding the island.
    — Hyung-Jin Kim, Los Angeles Times, 27 Aug. 2026
Definition of groundless
Adjective
  • Internal affairs complaints The lawsuit identifies five internal complaints filed against Sumstad between December 2022 and October 2025 and alleges each was dismissed, deemed unsubstantiated or ended in her exoneration.
    — Ben Wheeler, Kansas City Star, 24 Sep. 2026
  • Somehow this unsubstantiated story became internationally known with almost no major media explicitly reporting it, and before the modern version of the internet.
    — Allen Salkin, HollywoodReporter, 14 Sep. 2026
Definition of unsubstantiated

Browse Nearby Words

based
baseless
baseline
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Cite this Entry

“Baseless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/baseless. Accessed 20 Oct. 2026.

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