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
In a way, journalism was the ultimate expression of her class treachery.
—
Rachel Syme, New Yorker, 1 Dec. 2025
And when the surviving crew interrogates the android Ash about his treachery, the book has him pretty much spill the space beans.
—Daniel Dockery, Vulture, 22 Sep. 2025
When does compromise become treachery or defeat?
—Literary Hub, 3 Sep. 2025
Could Juno be behind this treachery, as payback for David destroying her spy corporation and for changing his oldest daughter into a killer?
—Demetrius Patterson, HollywoodReporter, 27 Aug. 2025
See All Example Sentences for treachery
Rachel Syme, New Yorker, 1 Dec. 2025
And when the surviving crew interrogates the android Ash about his treachery, the book has him pretty much spill the space beans.
—Daniel Dockery, Vulture, 22 Sep. 2025
When does compromise become treachery or defeat?
—Literary Hub, 3 Sep. 2025
Could Juno be behind this treachery, as payback for David destroying her spy corporation and for changing his oldest daughter into a killer?
—Demetrius Patterson, HollywoodReporter, 27 Aug. 2025
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
Noun
-
It’s filled with super-heightened emotions; unrestrained passion, betrayal, evil and even a magic spell or two.—
David Lyman,
Cincinnati Enquirer,
5 Feb. 2026
-
What’s most striking about the response is the sense of betrayal about Aronofsky’s involvement.—
Jake Kanter,
Deadline,
5 Feb. 2026
Noun
-
The president’s team moved quickly to prosecute the sheriff for treason.—
Michael Scherer,
The Atlantic,
22 Jan. 2026
-
Veteran opposition figure Kizza Besigye, a four-time presidential candidate, remains in prison after he was charged with treason last February.—
Los Angeles Times,
Los Angeles Times,
17 Jan. 2026
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 7 Feb. 2026.
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