treasonous

adjective

trea·​son·​ous ˈtrē-zə-nəs How to pronounce treasonous (audio)
ˈtrēz-nəs

Examples of treasonous in a Sentence

Recent Examples on the Web
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.
On Truth Social, comments made calling Obama treasonous and deserving of either imprisonment or execution rose from three to 36, an 1,100 percent increase. Kate Plummer, MSNBC Newsweek, 24 July 2025 That was considered treasonous, and he was sentenced to 10 years. Edward Felsenthal, Time, 23 July 2025 American civilians—including South Carolina politician Henry Laurens (captured on the Atlantic) and Patience Wright’s future son-in-law Ebenezer Smith Platt (arrested for treasonous crimes at sea)—were accused of treason under the act and brought to British prisons, even the famed Tower of London. Literary Hub, 17 July 2025 Lord is interviewed on the news for comment on Luthor's treasonous acts. EW.com, 11 July 2025 See All Example Sentences for treasonous

Word History

First Known Use

1593, in the meaning defined above

Time Traveler
The first known use of treasonous was in 1593

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Cite this Entry

“Treasonous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/treasonous. Accessed 6 Aug. 2025.

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