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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The entrepreneur and wellness coach addressed rumors of infidelity while responding directly to a fan’s accusation on Instagram.—
Amber Corrine,
VIBE.com,
23 May 2025 -
Honey is typically in the business of infidelity, taking cases involving suspicious spouses and their philandering partners.—
Lovia Gyarkye,
HollywoodReporter,
23 May 2025
Noun
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Directed by Jonathan Li and Choy Man-yu, the film stars Louis Koo as a private detective investigating a complex case involving adultery and murder.—
Naman Ramachandran,
Variety,
2 June 2025
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Many scandals arise from the occasion of these activities, and adulteries and other outrageous crimes are committed as a clear offence to God, a very serious danger to the souls of those committing them, and a pernicious example to others.—
The Editors,
JSTOR Daily,
27 Mar. 2025
Noun
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One professor challenged that reasoning, which Casas repeated during the panel on Wednesday, telling the police chief that for students with fragile immigration statuses, being detained by university police would feel like a betrayal.—
Garrett Shanley,
Miami Herald,
23 May 2025
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In the aftermath, Mahnaz will be forced to confront betrayal and loss, and to embark on a quest for justice.—
Baz Bamigboye,
Deadline,
22 May 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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That's telling about the culture that was created in which questioning or stress-testing created suspicions of disloyalty.—
Philip Elliott,
Time,
20 May 2025
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In April, the president fired the head of the NSA after the conspiracist Laura Loomer accused him of disloyalty; in early May, the administration announced plans to cut more than a thousand jobs at the CIA and other spy agencies.—
James Santel,
The Atlantic,
8 May 2025
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“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 9 Jun. 2025.
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