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 order to accomplish this unreasonable task, plaintiff would have to again unwillingly see the video and then erase it.Nancy Dillon, Rolling Stone, 24 Dec. 2024
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In the world of mechanical keyboards, unreasonable luxury is par for the course.Ars Technica, Ars Technica, 23 Dec. 2024
Adjective
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The lines — in banana yellows, tangerine oranges, cranberry reds — twist and turn and suggest an irrational understanding of how the universe works.Ray Mark Rinaldi, The Denver Post, 16 Dec. 2024
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Conversely, what then could be more wasteful, more undesirable, and more irrational than negating a large share of these conversion gains by wasting them?Vaclav Smil, WIRED, 12 Dec. 2024
Adjective
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The law is intended to protect consumers from false advertising or deceptive practices, which the suit claims applies to the promotion of women's sports that may include transgender participants.Josh Hammer, Newsweek, 23 Dec. 2024
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That will in turn spread on social media, which often plays a disproportional role in boosting these disinformation efforts by providing nearly unlimited platforms for unfiltered content and fallacious and deceptive claims.Peter Suciu, Forbes, 23 Dec. 2024
Adjective
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Nashville) Letter:Trump's false claims on pet-eating scared me into hiding my cat.David Plazas, The Tennessean, 20 Dec. 2024
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That followed a pattern seen in CBS News analysis of his posts during the campaign season, when Musk frequently shared false narratives about the election and amplified extreme voices from the right-wing fringe to his millions of followers.CBS News, CBS News, 19 Dec. 2024
Adjective
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Additionally, Spiro argues use of the Child Victims Act (CVA) is illegitimate since the incident also lies outside both the original window and the revival periods for that law.Anna Kaufman, USA TODAY, 31 Dec. 2024
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One of the men, Capt. William West, was born to West’s spinster aunt, Elizabeth — and illegitimate.CNN, The Mercury News, 25 Dec. 2024
Adjective
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Curiosity In The Billable Hour World In a world where every minute counts, taking what may feel like the long way around can seem illogical.Hunter McMahon, Forbes, 4 Dec. 2024
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This is a holiday movie, so Avery and Logan decide to handle this situation in the most illogical way possible.Stephanie McNeal, Glamour, 27 Nov. 2024
Thesaurus Entries Near fallacious
Cite this Entry
“Fallacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacious. Accessed 5 Jan. 2025.
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