1
as in unreasonable
not using or following good reasoning
it's fallacious to say that something must exist because science hasn't proven its nonexistence
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2
as in misleading
tending or having power to deceive
consumers who harbor the fallacious belief that credit-card spending will never catch up with them
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Recent Examples of fallacious
Catherine Weller, director of global policy for Fauna & Flora International, tells Popular Mechanics that Barron’s argument is fallacious.
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Susan Lahey, Popular Mechanics, 24 July 2023
Bad legislation and fallacious arguments are threatening our most renowned educational institutions, which have made major contributions to our understanding of science and society and to our health and economic well-being, institutions that are the envy of the world.
—Burton G. Malkiel, WSJ, 19 Oct. 2022
But he's been criticized by some Republicans, mostly quietly, for relentlessly supporting Trump's fallacious claims of a fraudulent election last November and for not forcefully criticizing Trump for helping provoke the deadly Jan. 6 attack on the Capitol by his supporters.
—Alan Fram, BostonGlobe.com, 3 Feb. 2021
Jurors got the the analytics reports, mixed with Jones’ wildly fallacious broadcast denials of the shootings, during the third day of trial in a suit against Jones and his business by a first responder and relatives of the 26 students and educators who died.
—Edmund H. Mahony, Hartford Courant, 15 Sep. 2022
See all Example Sentences for fallacious 
Susan Lahey, Popular Mechanics, 24 July 2023
Bad legislation and fallacious arguments are threatening our most renowned educational institutions, which have made major contributions to our understanding of science and society and to our health and economic well-being, institutions that are the envy of the world.
—Burton G. Malkiel, WSJ, 19 Oct. 2022
But he's been criticized by some Republicans, mostly quietly, for relentlessly supporting Trump's fallacious claims of a fraudulent election last November and for not forcefully criticizing Trump for helping provoke the deadly Jan. 6 attack on the Capitol by his supporters.
—Alan Fram, BostonGlobe.com, 3 Feb. 2021
Jurors got the the analytics reports, mixed with Jones’ wildly fallacious broadcast denials of the shootings, during the third day of trial in a suit against Jones and his business by a first responder and relatives of the 26 students and educators who died.
—Edmund H. Mahony, Hartford Courant, 15 Sep. 2022
See all Example Sentences for fallacious
Recent Examples of Synonyms for fallacious
Adjective
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In the comments, many people criticized the niece for disregarding her uncle's feelings and making an unreasonable request.Erin Clack, People.com, 14 Jan. 2025
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Most Canadians supported the move and opposed the weekslong blockades, but the Federal Court of Canada ruled last year that the use of the powers was unreasonable.Amanda Coletta The Washington Post, arkansasonline.com, 7 Jan. 2025
Adjective
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Now comes a cataclysm in the country’s foremost blue state that is traceable, in part, to irrational progressive priorities and may prove a millstone around the neck of one of the foremost talents on the Democratic bench, California governor Gavin Newsom.Rich Lowry, National Review, 15 Jan. 2025
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After a turbulent period of irrational exuberance followed by skepticism, the creator economy appears poised for its second major growth cycle, with M&A activity forecast to accelerate significantly in 2025.Ian Shepherd, Forbes, 15 Jan. 2025
Adjective
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The Franklin County and River Valley Coalition recently accused officials of the Arkansas Development Finance Authority and a division of the building authority of being deceptive and called for an investigation.Alex Golden, Axios, 6 Jan. 2025
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Penelope in the Odyssey says that dreams that pass through the gate of ivory are deceptive, while those that pass through the gate of horn are real.Matthew Wills, JSTOR Daily, 4 Jan. 2025
Adjective
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Those who disputed the accuracy of an account and thought their report had been corrected instead see the same false information reappear without explanation, the agency found.Kate Gibson, CBS News, 7 Jan. 2025
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Users from a diverse range of perspectives would then reach an agreement on whether content is false, Kaplan said in a blog post.Queenie Wong, Los Angeles Times, 7 Jan. 2025
Adjective
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The United States Congress has a long tradition of not recognizing illegitimate regimes.Nana Sajaia, Fox News, 8 Jan. 2025
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Here's why there are still some Riley and Gooch obtained nearly $3.3 million in illegitimate proceeds from AHCCCS, according to the U.S. Attorney's Office.Olivia Rose, The Arizona Republic, 21 Dec. 2024
Adjective
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Honolulu’s case is illogical on its face given that its allegations of damages stem from interstate greenhouse gas emissions.David Blackmon, Forbes, 30 Dec. 2024
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What’s hard about this, of course, is that fear is often illogical, and our wants can be, too.R. Eric Thomas, The Mercury News, 28 Dec. 2024
Thesaurus Entries Near fallacious
Cite this Entry
“Fallacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacious. Accessed 20 Jan. 2025.
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