as in unreasonable
having no basis in reason or fact
the accusation proved to be unfounded
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Recent Examples of unfounded
Amid unfounded fears over vaccines during the pandemic, Children’s Health Defense expanded its reach beyond the parents of small children and grew beyond its website, which for years had been a hub for health misinformation.
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Brandy Zadrozny, NBC News, 13 Nov. 2024
The Maricopa County Board of Supervisors governs the most populous county in Arizona, and its leaders will be tasked with tackling a regional housing affordability crisis, the impacts of rapid population growth and a recent slew of unfounded election conspiracies, among other issues.
—Sasha Hupka, The Arizona Republic, 12 Nov. 2024
Environmental factors such as air pollution and diet contribute to chronic health conditions, but Kennedy has pushed unfounded claims around certain food ingredients and minerals.
—Annika Kim Constantino, CNBC, 5 Nov. 2024
They’re largely driven by unfounded claims, spread for years by Donald Trump, that Democrats are registering undocumented immigrants to vote.
—Brian Bennett, TIME, 5 Nov. 2024
See all Example Sentences for unfounded 
Brandy Zadrozny, NBC News, 13 Nov. 2024
The Maricopa County Board of Supervisors governs the most populous county in Arizona, and its leaders will be tasked with tackling a regional housing affordability crisis, the impacts of rapid population growth and a recent slew of unfounded election conspiracies, among other issues.
—Sasha Hupka, The Arizona Republic, 12 Nov. 2024
Environmental factors such as air pollution and diet contribute to chronic health conditions, but Kennedy has pushed unfounded claims around certain food ingredients and minerals.
—Annika Kim Constantino, CNBC, 5 Nov. 2024
They’re largely driven by unfounded claims, spread for years by Donald Trump, that Democrats are registering undocumented immigrants to vote.
—Brian Bennett, TIME, 5 Nov. 2024
See all Example Sentences for unfounded
Recent Examples of Synonyms for unfounded
Adjective
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At Soar, students are able to move around and be supported as individuals, rather than being forced to comply with conventional classroom standards that can be developmentally unreasonable.Kerry McDonald, Forbes, 21 Nov. 2024
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Bill Nicholson Martinez Congress must retain constitutional authority Will Congress stand up to President-elect Donald Trump’s unreasonable request to make recess appointments?Letters To The Editor, The Mercury News, 20 Nov. 2024
Adjective
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While the other governors’ concern is probably groundless, the new reserves are proving politically useful for some in this era of fearmongering politicos.Thomas Elias, The Mercury News, 1 Nov. 2024
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The upshot is that the AI can computationally generate a response that appears to be accurate but is groundless and not based on facts.Lance Eliot, Forbes, 1 Nov. 2024
Adjective
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Lutnick repeated several unsubstantiated claims in the interview with Collins, including that the government is withholding data about vaccines, that vaccines are linked to a rise in autism diagnoses and that scientists were paid to say Kennedy is lying about vaccines.Sarah Fortinsky, The Hill, 31 Oct. 2024
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And despite not being a swing state, the issue has thrust Virginia into the national spotlight as Republicans seize on the unsubstantiated claims that non-citizen voting will influence election outcomes in Vice President Harris' favor.Sabrina Moreno, Axios, 30 Oct. 2024
Thesaurus Entries Near unfounded
Cite this Entry
“Unfounded.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfounded. Accessed 1 Dec. 2024.
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