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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Recent Examples of quack
The nomination to any responsible position of quacks like Robert F. Kennedy Jr. or Florida Surgeon General Joseph Ladapo would put her to that test.
—
Orlando Sentinel and South Florida Sun Sentinel Editorial Boards, Orlando Sentinel, 11 Nov. 2024
Her favorite recording reminded me of a duck’s quack.
—Rivka Galchen, The New Yorker, 14 Oct. 2024
Witness the presidential campaign of anti-vaccine crackpot Robert F. Kennedy Jr. and the dangerous attack on medical science by Florida Gov. Ron DeSantis and his quack henchman, Florida Surgeon General Joseph Ladapo.
—Michael Hiltzik, Los Angeles Times, 30 July 2024
Many in the life-extension movement are quacks or hacks who peddle pills, potions, and false promises; longevity skeptics tend to see the loss of our capacities as something to accept, not avoid.
—Dhruv Khullar, The New Yorker, 15 Apr. 2024
See All Example Sentences for quack
Orlando Sentinel and South Florida Sun Sentinel Editorial Boards, Orlando Sentinel, 11 Nov. 2024
Her favorite recording reminded me of a duck’s quack.
—Rivka Galchen, The New Yorker, 14 Oct. 2024
Witness the presidential campaign of anti-vaccine crackpot Robert F. Kennedy Jr. and the dangerous attack on medical science by Florida Gov. Ron DeSantis and his quack henchman, Florida Surgeon General Joseph Ladapo.
—Michael Hiltzik, Los Angeles Times, 30 July 2024
Many in the life-extension movement are quacks or hacks who peddle pills, potions, and false promises; longevity skeptics tend to see the loss of our capacities as something to accept, not avoid.
—Dhruv Khullar, The New Yorker, 15 Apr. 2024
See All Example Sentences for quack
Recent Examples of Synonyms for quack
Noun
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The panel also agreed Way acted with malice, oppression or fraud, and awarded her another $250,000 in punitive damages.—
Nancy Dillon,
Rolling Stone,
10 Apr. 2025
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Robinson faces five felonies: concealment of a death, identity theft, two counts of financial card theft, financial card fraud and car theft.—
Julia Coin,
Charlotte Observer,
9 Apr. 2025
Noun
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White has a knack to get to the foul line with creative fakes.—
Gary Bedore,
Kansas City Star,
15 Apr. 2025
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Historically, trade restrictions drive up the cost of authentic goods, creating the perfect conditions for counterfeiters to flood the market with cheaper, harder-to-detect fakes, according to Vidyuth Srinivasan, co-founder and CEO of Entrupy, an authentication service.—
Jessica Dickler,
CNBC,
14 Apr. 2025
Noun
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There are plenty of superhero properties out there that fall into the trap of having their antagonists do something heinous to prove that their otherwise just reasons are a sham, but surely in this case, if Maximus (Iwan Rheon) hadn’t staged a coup, another of the Inhuman subjects would’ve. 23.—
Nola Pfau,
Vulture,
17 Apr. 2025
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The sunny set includes a quilt in twin/twin XL, full/queen, and king sizes and matching shams to create a cohesive look in your space.—
Megan Schaltegger,
Better Homes & Gardens,
12 Apr. 2025
Noun
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The speed with which this group develops chemistry and finds that star could determine where the Crimson Tide fall on the spectrum between contender and pretender.—
CJ Moore,
New York Times,
8 Apr. 2025
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Carter noted that City Hall office workers will return to their cubicles three days per week as of April 1. Related Articles Contenders or pretenders?—
Frederick Melo,
Twin Cities,
26 Mar. 2025
Noun
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No, the danger is what those charlatans exploit, namely our vulnerability to the narrative of natural healing, the irresistible allure of conquering cancer with a simple, intuitive approach that lies entirely within our power, no chemo or surgery required.—
Alan Levinovitz,
Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government,
28 Feb. 2025
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Death at the hands of charlatans is not an inspiring storyline, which means publishers and film studios studiously avoid it.—
Alan Levinovitz,
Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government,
28 Feb. 2025
Noun
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With tariffs on pharmaceuticals, the mountebank of Mar-A-Lago wants to punish a small democracy of 5.3 million people that for the past 60 years has worked its way into the top table of drug research and production: Ireland.—
Kevin Rennie,
Hartford Courant,
29 Mar. 2025
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Gould observed that Jerry Falwell had taken up the mountebank’s mission of William Jennings Bryan.—
Michael Hiltzik,
Los Angeles Times,
26 July 2024
Noun
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These kinds of supportive environments can reduce impostor feelings and create space for growth.—
Mark Travers,
Forbes.com,
14 Apr. 2025
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Once hired, the impostor can install malware to demand ransom from a company, or steal its customer data, trade secrets or funds, according to Balasubramaniyan.—
Hugh Son,
CNBC,
8 Apr. 2025
Cite this Entry
“Quack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quack. Accessed 23 Apr. 2025.
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