as in infidelity
lack of faithfulness especially to one's husband or wife
perfidiousness eventually led to the couple's divorce
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for perfidiousness
Noun
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In the movie, the Bullmers’ relationship is still fraught, but the issues are based more in money than infidelity, and Anne (Lisa Loven Kongsli) is far more of a presence.—
Roxana Hadadi,
Vulture,
10 Oct. 2025 -
The two shared a tumultuous partnership that included allegations of infidelity, and divorced in 1967.—
Raven Brunner,
PEOPLE,
8 Oct. 2025
Noun
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Unhappy unions loom large in the novel, which teems with adultery.—
Katy Waldman,
New Yorker,
22 Sep. 2025
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Thou shalt not commit adultery.—
Lina Ruiz,
Fort Worth Star-Telegram,
22 Sep. 2025
Noun
-
The series explores the trauma, betrayal, and moral conflicts of characters pushed to the edge.—
Rosy Cordero,
Deadline,
15 Oct. 2025
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Inside Gaza, criticizing Hamas has long been treated by the organization as a form of betrayal.—
Mohammed R. Mhawish,
New Yorker,
14 Oct. 2025
Noun
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Their perfidy is memorialized in the English language, though.—
Evan Osnos,
New Yorker,
26 May 2025
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The prior month, Vice President JD Vance had lodged his own complaints about Europe’s alleged perfidy, threatening that the United States might withdraw its security guarantees from Europe if the EU continued to aggressively regulate U.S. tech companies.—
ANU BRADFORD,
Foreign Affairs,
21 Apr. 2025
Noun
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Many of China’s top military officials have been purged during Xi’s third term on charges of corruption or disloyalty.—
PHILIP H. GORDON,
Foreign Affairs,
22 Sep. 2025
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A lot of disloyalty this season with lots of empty words.—
Dalton Ross,
EW.com,
22 Aug. 2025
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“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 19 Oct. 2025.
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