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 unleashed a series of personal and baseless attacks against Hamilton at the rally in Park City, Kansas -- about 10 miles north of Wichita -- with just two weeks out from election day as the balance of power in the Senate hangs in the balance. — ABC News, 20 Oct. 2026 The White House has consistently derided Bonta’s litigation against the administration as baseless and misguided. — Kevin Rector, Los Angeles Times, 15 Oct. 2026 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 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
  • On the surface, paying as low as 24 cents for an hour of streaming game time doesn’t sound completely unreasonable.
    — Kyle Orland, ArsTechnica, 21 Oct. 2026
  • If Putin rejects the framework — or, more likely, demands unreasonable changes — then the world will at least know who blocked the fledgling peace effort.
    — David Ignatius, Washington Post, 21 Oct. 2026
Definition of unreasonable
Adjective
  • The Republican accused Bradley of lying about the circumstances of her absence, an allegation Bradley’s campaign said was unfounded.
    — Mary Ramsey, Charlotte Observer, 16 Oct. 2026
  • The pullback isn't totally unfounded given the problems in its medical devices business.
    — Kevin Stankiewicz, CNBC, 13 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 27 Oct. 2026.

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