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 post was accompanied by a series of hashtags that included #divorce, #cheating and #infidelity.—
The Athletic MLB Staff,
New York Times,
21 June 2025 -
Creators shared videos about pregnancy horror stories, infidelity and threats of domestic violence, opening up a conversation about how young people use humor as a coping mechanism to talk about traumatic events.—
Rachel Hale,
USA Today,
19 June 2025
Noun
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Every look with such an irregular desire is in our Savior’s opinion a virtual adultery. . . .—
Merve Emre,
New Yorker,
16 June 2025
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The sixth commandment in Catholic teaching prohibits adultery.—
Ruth Graham,
New York Times,
22 May 2025
Noun
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The tricky thing is that the Jackal, across the 10 episodes, does despicable acts of violence and betrayal in order to achieve his goal.—
Ryan Fleming,
Deadline,
19 June 2025
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Better to categorize Lacey’s latest as its own genre, a category-defining, creative, thought-provoking piece of literature on loss, betrayal, friendships, faith, and more….Unlike life, there is no beginning or end, just a story that follows its own strange, wild, and mesmerizing pattern.—
Gabrielle Bellot,
Literary Hub,
17 June 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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More cunningly, this also serves to instill you with guilt: as though refusing to align with their viewpoints equates to a signal of disloyalty.—
Mark Travers,
Forbes.com,
31 May 2025
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One video aims to appeal to senior Communist Party officials who live in perpetual fear of being snapped up by Xi’s seemingly endless crackdown on corruption and disloyalty.—
Nectar Gan,
CNN Money,
2 May 2025
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Cite this Entry
“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 1 Jul. 2025.
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