1
as in infidelity
lack of faithfulness especially to one's husband or wife
his wife's perfidy was a moment of uncharacteristic weakness
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Antonyms & Near Antonyms
2
as in treachery
the act or fact of violating the trust or confidence of another
the full cost—both in compromised intelligence and in human life—of the double agent's perfidy is not yet known
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Antonyms & Near Antonyms
Examples Sentences
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Recent Examples of perfidy
To Netanyahu’s supporters urging restraint by Israel is an act of perfidy, rather than an instance of a president upholding his oath to protect American interests.
—
Ben Krull, New York Daily News, 22 Apr. 2024
Drawing on American foreign policy circa 9/11 and the Iraq War, these pieces were huge collages of perfidies that Weinberger fashioned into a narrative of governmental misdeeds.
—Wyatt Mason, Harper's Magazine, 26 Apr. 2024
For a regime that has staked much of its credibility and political future on the war in Ukraine, Putin and his Kremlin allies need to keep the domestic focus on the perfidy of the foes next door.
—Ishaan Tharoor, Washington Post, 27 Mar. 2024
London audiences welcomed a scathing romp about the perfidies of global capitalism.
—Rebecca Mead, The New Yorker, 4 Mar. 2024
See all Example Sentences for perfidy 
Ben Krull, New York Daily News, 22 Apr. 2024
Drawing on American foreign policy circa 9/11 and the Iraq War, these pieces were huge collages of perfidies that Weinberger fashioned into a narrative of governmental misdeeds.
—Wyatt Mason, Harper's Magazine, 26 Apr. 2024
For a regime that has staked much of its credibility and political future on the war in Ukraine, Putin and his Kremlin allies need to keep the domestic focus on the perfidy of the foes next door.
—Ishaan Tharoor, Washington Post, 27 Mar. 2024
London audiences welcomed a scathing romp about the perfidies of global capitalism.
—Rebecca Mead, The New Yorker, 4 Mar. 2024
See all Example Sentences for perfidy
Recent Examples of Synonyms for perfidy
Noun
-
Again, one needn’t endorse Trump’s infidelity or lies to observe that the spectacle disserves the country.—
The Editors,
National Review,
15 Jan. 2025
-
Democrats on the Senate Armed Services Committee failed to land a decisive blow against Pete Hegseth, President-elect Trump’s nominee to serve as secretary of Defense, after several hours of tense questioning about his qualifications, views on women in combat, infidelity and drinking.—
Alexander Bolton,
The Hill,
15 Jan. 2025
Noun
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Welcome back for another season full of [Alan Cumming voice] deception, backstabbing and treachery!—
Nick Caruso,
TVLine,
9 Jan. 2025
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Yet Milady and her treachery have for nearly 200 years always stood out.—
Stephen Schaefer,
Boston Herald,
15 Apr. 2024
Noun
-
The article included other remarks related to Carter’s faith − such as the importance of the separation of church and state, a conviction born of Carter’s Southern Baptist upbringing − but the adultery comment opened a rift with Carter’s kin in Christ.—
John Bacon,
USA TODAY,
31 Dec. 2024
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Here’s what to know about the legal proceedings of adultery in Texas.—
Marley Malenfant,
Austin American-Statesman,
9 Dec. 2024
Noun
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Current employees may experience the change as betrayal, leading to serious motivation, productivity and retention issues.—
Nancy Doyle,
Forbes,
14 Jan. 2025
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Along with the glamorous guests, expect murder and betrayal to RSVP for a wedding with more twists and turns than the road from the Marina Grande to the Capri town square.—
Glenn Garner,
Deadline,
11 Jan. 2025
Noun
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These statements triggered significant backlash, including accusations of disloyalty and social media campaigns to discredit her.—
Andy Biggs,
Newsweek,
24 Dec. 2024
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Political interference by Bashir's ruling political party, the officer said, had weakened the Sudanese military by repeatedly purging those suspected of disloyalty and promoting officers based on loyalty rather than competence.—
Andrew Natsios,
Foreign Affairs,
1 Feb. 2012
Noun
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He is also being investigated by Russia’s Federal Security Service (FSB) for treason.—
George Nelson,
ARTnews.com,
31 Dec. 2024
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South Korean presidents do not enjoy immunity from insurrection or treason charges.—
Yeo Boon Ping,
CNBC,
31 Dec. 2024
Thesaurus Entries Near perfidy
Cite this Entry
“Perfidy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidy. Accessed 22 Jan. 2025.
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