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
Synonyms & Similar Words
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Antonyms & Near Antonyms
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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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of fallacious
Lawyers who argued for his ouster on behalf of the National Assembly said the claims by Mr. Yoon were fallacious.
—
Choe Sang-Hun, New York Times, 1 Apr. 2025
However, not all slippery slope arguments are fallacious.
—Mark Travers, Forbes.com, 26 Mar. 2025
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
But hard evidence in both our nation’s history and our present shows that this reasoning is fallacious.
—Ana Raquel Minian, TIME, 30 May 2024
See All Example Sentences for fallacious
Choe Sang-Hun, New York Times, 1 Apr. 2025
However, not all slippery slope arguments are fallacious.
—Mark Travers, Forbes.com, 26 Mar. 2025
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
But hard evidence in both our nation’s history and our present shows that this reasoning is fallacious.
—Ana Raquel Minian, TIME, 30 May 2024
See All Example Sentences for fallacious
Recent Examples of Synonyms for fallacious
Adjective
-
At this juncture, a 10-7 regular season record isn’t unreasonable.—
Charley Walters,
Twin Cities,
25 May 2025
-
Are my feelings unreasonable? – Mother-of-the-Groom Gloom Dear Mother: Your feelings are completely reasonable.—
R. Eric Thomas,
Mercury News,
23 May 2025
Adjective
-
It's forged in the quiet, difficult moments when doing the right thing seems irrational.—
Victoria Vitchenco,
Forbes.com,
28 May 2025
-
Rejecting his challenge in February 2024, Britain’s High Court said the decision to change Harry’s security status was neither irrational nor procedurally unfair.—
Henry Austin,
NBC news,
2 May 2025
Adjective
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Last year, the Biden administration's Transportation Department opened an inquiry ordering American, Delta Air Lines, Southwest and United to provide records and submit reports to ensure consumers do not face unfair, deceptive, or anticompetitive practices.—
David Shepardson,
USA Today,
3 June 2025
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The quest to build human-level AI agents using techniques known to produce deceptive tendencies, Bengio says, is comparable to a car speeding down a narrow mountain road, with steep cliffs on either side, and thick fog obscuring the path ahead.—
Harry Booth,
Time,
3 June 2025
Adjective
-
The decision to deploy Dembele as a false nine for a 3-1 home win over Lyon in mid-December proved the spark for a stupendous run of goal-scoring form in which the France international racked up 27 goals in only 22 appearances.—
Tom Williams,
New York Times,
30 May 2025
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Their accountant filed two false corporate tax returns, claiming one of the couple’s firms earned no money in 2015 and 2016.—
Howard Gleckman,
Forbes.com,
30 May 2025
Adjective
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This secret-keeping tradition kept President François Mitterrand’s illegitimate daughter hidden for years.—
Saskya Vandoorne,
CNN Money,
27 May 2025
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Maduro, whose reelection last year to a third term has been condemned internationally as illegitimate, also has cracked down on his political opponents.—
Mark Sherman,
Chicago Tribune,
19 May 2025
Adjective
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Which was probably to be expected, given that making a new entry in this franchise doesn’t require jumping through too many illogical hoops or reinventing an outdated conceit.—
Bilge Ebiri,
Vulture,
16 May 2025
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His insight and unconventional approach to understanding human behavior lead him and the team on a series of intense, unexpected journeys to solve illogical puzzles and perplexing mysteries.—
Nellie Andreeva,
Deadline,
9 May 2025
Cite this Entry
“Fallacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fallacious. Accessed 10 Jun. 2025.
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