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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of treachery
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—
Daniel Depetris, Mercury News, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Chicago Tribune, 24 Feb. 2026
Perfidy — from the French perfidie via the Latin perfidia — means deceitfulness, treachery or a breach of faith or promise.
—Harmeet Kaur, CNN Money, 21 Jan. 2026
But despite all this, not every Chelsea fan outside his family will regard this transfer as treachery.
—Simon Johnson, New York Times, 17 Jan. 2026
See All Example Sentences for treachery
Daniel Depetris, Mercury News, 26 Feb. 2026
With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.
—Daniel Depetris, Chicago Tribune, 24 Feb. 2026
Perfidy — from the French perfidie via the Latin perfidia — means deceitfulness, treachery or a breach of faith or promise.
—Harmeet Kaur, CNN Money, 21 Jan. 2026
But despite all this, not every Chelsea fan outside his family will regard this transfer as treachery.
—Simon Johnson, New York Times, 17 Jan. 2026
See All Example Sentences for treachery
Recent Examples of Synonyms for treachery
Noun
-
While some conservatives have described the war as a betrayal, many other Republicans have cheered on the president’s actions.—
Michelle L. Price,
Los Angeles Times,
1 Apr. 2026
-
The result is a second victimization — spiritual betrayal by those called to protect.—
Ed Gaskin,
Boston Herald,
29 Mar. 2026
Noun
-
After being tricked by Scarpia, Cavaradossi is hanged for treason.—
Courtney Lewis,
Florida Times-Union,
28 Mar. 2026
-
Other montage highlights and lowlights include Margo Madison being found guilty of treason and Samantha Massey being convicted of conspiracy to violate the M-7 charter.—
Sophie Brookover,
Vulture,
27 Mar. 2026
Cite this Entry
“Treachery.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/treachery. Accessed 4 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
