as in betrayal
the act or fact of violating the trust or confidence of another
was furious that she revealed his secret and never forgave her for the treachery
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Recent Examples of treachery
Later down the line, after being summoned to resolve a conflict that was a front for the Emperor’s treachery, Khazan was deemed a traitor to the empire, and he and his comrades — like Ozma — were executed or exiled for aiding a traitor.
—
Scott McRae, Rolling Stone, 24 Mar. 2025
Because of that treachery Castor was a pure mortal, but Pollux was a half god.
—Mike Lynch, Twin Cities, 6 Apr. 2025
After weeks of treachery and deception, the final roundtable has been viewed, and the winner or winners for The Traitors Season 3 have been revealed.
—Armando Tinoco, Deadline, 6 Mar. 2025
Clay’s Dad, Trevor Photo: Netflix It cannot be said enough that the root of so much of this season’s strife between AD and Clay can be traced back to one man’s flagrant disregard for his marital vows, and his inexplicable decision to involve his kids in the treachery.
—Anusha Praturu, Vulture, 13 Mar. 2024
See All Example Sentences for treachery
Scott McRae, Rolling Stone, 24 Mar. 2025
Because of that treachery Castor was a pure mortal, but Pollux was a half god.
—Mike Lynch, Twin Cities, 6 Apr. 2025
After weeks of treachery and deception, the final roundtable has been viewed, and the winner or winners for The Traitors Season 3 have been revealed.
—Armando Tinoco, Deadline, 6 Mar. 2025
Clay’s Dad, Trevor Photo: Netflix It cannot be said enough that the root of so much of this season’s strife between AD and Clay can be traced back to one man’s flagrant disregard for his marital vows, and his inexplicable decision to involve his kids in the treachery.
—Anusha Praturu, Vulture, 13 Mar. 2024
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
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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Lee’s campaign has asserted that a sitting president cannot be criminally prosecuted, except in cases of treason.—
Jong Eun Lee,
The Conversation,
29 May 2025
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The cost of failure would have been death on the grounds of treason.—
Daniel Twining,
National Review,
22 May 2025
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 10 Jun. 2025.
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