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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For many couples, infidelity is a nonnegotiable breach of trust, never to be forgiven.—
Stephanie Zacharek,
Time,
4 Sep. 2025 -
The second season saw the #MomTok group dissipate with Taylor Frankie Paul’s infidelity and the drama with his mistress Jenna.—
Peter White,
Deadline,
28 Aug. 2025
Noun
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In addition, Swazi law has a different definition of adultery for men and for women.—
The Editors,
JSTOR Daily,
15 Aug. 2025
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Certain artistic genres were employed to publicize and critique changes to laws regarding adultery and divorce.—
Smithsonian Magazine,
Smithsonian Magazine,
29 July 2025
Noun
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But for students who have spent years—and significant financial sums—on their education, struggling to land one's first job may feel like a betrayal.—
Hugh Cameron,
MSNBC Newsweek,
4 Sep. 2025
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So this is a temporary hiccup—Indians will be unhappy, anti-Americanism will once again grow within the country’s strategic elite, and stories of American betrayals will persist for years.—
Happymon Jacob,
Time,
3 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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A lot of disloyalty this season with lots of empty words.—
Dalton Ross,
EW.com,
22 Aug. 2025
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Kennedy defended his top aide Stefanie Spear, who has been targeted by Loomer, over her seeming disloyalty to Trump.—
Nathaniel Weixel,
The Hill,
15 Aug. 2025
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“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 8 Sep. 2025.
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