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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This type of infidelity can stem from dissatisfaction in the relationship or a desire for something different.—
Melina Khan,
USA Today,
25 Sep. 2025 -
Lorenzo must deal with the repercussions of his infidelity and the weight of all the manipulation.—
Isabella Wandermurem,
Time,
24 Sep. 2025
Noun
-
Unhappy unions loom large in the novel, which teems with adultery.—
Katy Waldman,
New Yorker,
22 Sep. 2025
-
Thou shalt not commit adultery.—
Lina Ruiz,
Fort Worth Star-Telegram,
22 Sep. 2025
Noun
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After jumping between two worlds in the first half of the season, John Cena’s Chris Smith finally moves to the parallel universe to be a better man, a decision partly prompted by a heartbreaking betrayal.—
Saman Shafiq,
USA Today,
24 Sep. 2025
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She is caught up in a delusion, convinced that her imaginary accomplice Libardo is accusing her of betrayal.—
Isabella Wandermurem,
Time,
24 Sep. 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 29 Sep. 2025.
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