as in fraud
one who makes false claims of identity or expertise
don't bother to see that guy, as I've heard he's a quack with no actual training
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Example Sentences
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Recent Examples of quack
Tell that to the kids who have been hospitalized and died from measles, following quack Dr. Bobby’s Rx to avoid the shots.
—
New York Daily News Editorial Board, New York Daily News, 29 May 2025
And this is why hydropathy was not like many of the other quack medical therapies of the not-quite-modern era.
—John Jeremiah Sullivan, Harpers Magazine, 29 Apr. 2025
Famous athlete revealed as Fuzzy Peas on Masked Singer while Ken Jeong shocks with Lord Farquaad look on wild Shrek Night
With a final dramatic flourish of his cape and a quack, Lucky Duck departed, and it was revealed that Coral would be joining Paparazzo in the final six.
—Lauren Huff, EW.com, 27 Feb. 2025
There couldn’t a worse choice for the CDC at a time when vaccinations are already being discouraged by such quacks as Florida Surgeon General Joseph Ladapo, who also opposes fluoridation.
—Sun Sentinel Editorial Board, Sun Sentinel, 9 Dec. 2024
See All Example Sentences for quack
New York Daily News Editorial Board, New York Daily News, 29 May 2025
And this is why hydropathy was not like many of the other quack medical therapies of the not-quite-modern era.
—John Jeremiah Sullivan, Harpers Magazine, 29 Apr. 2025
Famous athlete revealed as Fuzzy Peas on Masked Singer while Ken Jeong shocks with Lord Farquaad look on wild Shrek Night
With a final dramatic flourish of his cape and a quack, Lucky Duck departed, and it was revealed that Coral would be joining Paparazzo in the final six.
—Lauren Huff, EW.com, 27 Feb. 2025
There couldn’t a worse choice for the CDC at a time when vaccinations are already being discouraged by such quacks as Florida Surgeon General Joseph Ladapo, who also opposes fluoridation.
—Sun Sentinel Editorial Board, Sun Sentinel, 9 Dec. 2024
See All Example Sentences for quack
Recent Examples of Synonyms for quack
Noun
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The president and his allies accused Cook of mortgage fraud.—
Bryan Mena,
CNN Money,
12 Jan. 2026
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At the same briefing, White House Press Secretary Karoline Leavitt came out swinging at Minnesota Democrats in defense of the ICE agent while touting the Medicaid fraud investigation, which dates back to the Biden administration.—
Phillip M. Bailey,
USA Today,
11 Jan. 2026
Noun
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That first episode is a clever fake-out.—
Emily Zemler,
Los Angeles Times,
11 Jan. 2026
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The collectibles market is flooded with fakes.—
Dana O’Neil,
CNN Money,
11 Jan. 2026
Noun
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Both the pillow shams and bedding are made with a comfy cotton blend.—
Sophia Beams,
Better Homes & Gardens,
13 Jan. 2026
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All of us know this is a sham and a shame.—
Voice of the People,
New York Daily News,
11 Jan. 2026
Noun
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First up was Ben Shapiro, who described Tucker Carlson and others as grifters and charlatans, guilty of misleading their audiences with falsehoods and conspiracy theories.—
Jonathan J. Cooper,
Fortune,
19 Dec. 2025
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Of course, there is also plenty of Trump flattery along with paeans to Robert F. Kennedy Jr. and his cockamamie make-America-sick-again agenda, as one medical charlatan nods to another.—
Mark Z. Barabak,
Mercury News,
10 Dec. 2025
Noun
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The Cult of the Beaver has to fend off pretenders.—
AJ Willingham,
AJC.com,
13 Jan. 2026
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Advertisement Iranians deserve better than the Pahlavi pretender.—
Bobby Ghosh,
Time,
9 Jan. 2026
Noun
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Good afternoon and welcome to Con Con, the convention for swindlers, mountebanks, and the people who love them.—
Henry Alford,
New Yorker,
1 Dec. 2025
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Godard might have come across as a species of poseur – a pretentious, quote-spouting mountebank – but his way of seeing was genuinely new.—
Peter Rainer,
Christian Science Monitor,
13 Nov. 2025
Noun
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To tell the truly venomous from the fakers, there are a couple details to help distinguish the two.—
Kirsten Fiscus,
Nashville Tennessean,
17 Sep. 2025
Noun
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Islamic eschatology warned of a deceiver who distorts perception, blurring reality.—
Kaif Shaikh,
Interesting Engineering,
15 Aug. 2025
Cite this Entry
“Quack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quack. Accessed 19 Jan. 2026.
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