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
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
To its credit, the IPCC has elevated the debate and increased the credibility of climate science, minimizing the impact of climate quacks.
—Ken Silverstein, Forbes, 12 Feb. 2024
See all Example Sentences for 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
To its credit, the IPCC has elevated the debate and increased the credibility of climate science, minimizing the impact of climate quacks.
—Ken Silverstein, Forbes, 12 Feb. 2024
See all Example Sentences for quack
Recent Examples of Synonyms for quack
Noun
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Trump and Vice President JD Vance have emphasized that cuts to Social Security and Medicare are largely off the table except for fraud and abuse.—
Ramsey Touchberry,
Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government,
8 Feb. 2025
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The memorandum also directs the DOJ to engage in prosecutions under laws meant to prevent fraud and criminal conspiracies against the U.S. government.—
Sharon Bernstein,
Sacramento Bee,
8 Feb. 2025
Noun
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Gabriela Jaquez could be moved with a screen, freshman Kendall Dudley bit on Watkins’ fakes, and Janiah Barker wasn’t disciplined enough to keep track of Watkins’ movement.—
Sabreena Merchant,
The Athletic,
14 Feb. 2025
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But her choice ultimately comes down to a question of authenticity; the rich author is a liar and a fake, while the pickle man is the salt of the earth.—
Jason Bailey,
New York Times,
14 Feb. 2025
Noun
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The breakdown of democracy in the United States will not give rise to a classic dictatorship in which elections are a sham and the opposition is locked up, exiled, or killed.—
STEVEN LEVITSKY,
Foreign Affairs,
11 Feb. 2025
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The set includes a queen comforter and two matching pillow shams to create a cohesive look in the bedroom.—
Kelsey Fredricks,
Better Homes & Gardens,
26 Jan. 2025
Noun
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John Elway was considered a postseason pretender when his Denver Broncos were annihilated in three Super Bowls over a four-year stretch, then finished his career by snagging the franchise’s first two championship rings.—
Tim Graham,
The Athletic,
22 Jan. 2025
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Every decision carries weight, and in a league where the line between contender and pretender is razor-thin, there’s little room for error.—
Kristian Winfield,
New York Daily News,
6 Jan. 2025
Noun
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One who comes to her full power when she is exiled by a charlatan, by a cruel leader.—
Matt Donnelly,
Variety,
26 Nov. 2024
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The good, sincere members would flourish and the charlatans, the folks who over-promise to their constituents, would not.—
Gary Franks,
Boston Herald,
20 Jan. 2024
Noun
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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
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Now, this pallid Color Purple epitomizes the artistic dearth of an era when a cultural mountebank like Winfrey uses race and feminist guile to cheat us of America’s most creative achievements.—
Armond White,
National Review,
3 Jan. 2024
Noun
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In Rankin’s short, Rankin himself plays an impostor posing as the not-so-famous Winnipeg filmmaker Matthew Rankin.—
Bilge Ebiri,
Vulture,
14 Feb. 2025
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After Elon Musk purchased Twitter and swiftly removed all content moderation, a substantial exodus flowed to weak impostors like BlueSky, Threads, and Mastodon.—
Yaakov Katz,
Newsweek,
17 Jan. 2025
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Cite this Entry
“Quack.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quack. Accessed 21 Feb. 2025.
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