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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Conventional political wisdom has it that Talarico was the stronger Democratic candidate in November, especially if Republicans nominate Paxton, a conservative firebrand who has weathered allegations of corruption and infidelity over the years.—
Bill Barrow,
Los Angeles Times,
4 Mar. 2026 -
Conventional political wisdom has Talarico as the stronger Democratic candidate for November, especially if Republicans nominate Paxton, a conservative firebrand who has weathered allegations of corruption and infidelity over the years.—
Bill Barrow,
Twin Cities,
4 Mar. 2026
Noun
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The facile novelty of adultery is its own mask, a sexy way of dressing up a deep, frightened longing for security.—
Sara Holdren,
Vulture,
6 Mar. 2026
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The Texas attorney general beat a 2023 impeachment trial on corruption charges and reached a deal to end a long-running securities fraud case but now faces a contentious divorce over allegations of adultery.—
Meg Kinnard,
Chicago Tribune,
17 Feb. 2026
Noun
-
The reality star's betrayal cost him a pretty penny in the end.—
Emlyn Travis,
Entertainment Weekly,
5 Mar. 2026
-
To ventriloquize one’s parent is a bold move, and fictitious Barbara would absolutely read it as a betrayal.—
Literary Hub,
Literary Hub,
5 Mar. 2026
Noun
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Any time there is a crisis in Iran, the 1953 British-American coup against Prime Minister Mohammad Mossadegh is dusted off as Exhibit A in the case against Western perfidy.—
Bobby Ghosh,
Time,
5 Mar. 2026
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But the mayor’s dramatic tale of his predecessor’s fiscal fiddling was designed with a clear political agenda in mind: both to underline the magnitude of the problem and to identify the villains responsible for this perfidy.—
Washington Post,
Washington Post,
29 Jan. 2026
Noun
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Research on group dynamics shows that dissent is often interpreted as disloyalty rather than contribution.—
Benjamin Laker,
Forbes.com,
16 Jan. 2026
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The courts have warned against treating dissent as disloyalty.—
Chicago Tribune,
Chicago Tribune,
12 Jan. 2026
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“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 11 Mar. 2026.
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