treasonous

adjective

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

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.
Trump suggested on social media that the lawmakers' actions were treasonous and punishable by jail time or death. Todd Spangler, Freep.com, 20 Nov. 2025 To save his ailing parents and his subjects both from this treasonous bunch and from oblivion, adult Herneval (Arturo Mercado Jr.) needs Frankelda to write scary stories. Carlos Aguilar, Variety, 31 Oct. 2025 During the latest protests in Indonesia, authorities confiscated banners and labeled them treasonous. Eva Roytburg, Fortune, 24 Sep. 2025 Trump himself then pardoned the rioters, the treasonous criminals. Chicago Tribune, 14 Aug. 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 15 Dec. 2025.

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