as in treacheries
the act or fact of violating the trust or confidence of another
the full cost—both in compromised intelligence and in human life—of the double agent's perfidy is not yet known
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Example Sentences
Recent Examples of Synonyms for perfidies
betrayals
Noun
-
Reading Nicholas Mosley’s nonfiction reveals a writer concerned with the sins of the past, with political maneuvering at the highest levels of government, and of personal and ideological betrayals.—
Literary Hub,
Literary Hub,
27 Feb. 2026 -
Friendships and couples form only to implode, and eight years’ worth of secrets, lies, and betrayals come to a head in the series finale.—
Grace McCarty,
Glamour,
17 Feb. 2026
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“Perfidies.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidies. Accessed 12 Mar. 2026.
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