un-American

adjective

un-Amer·​i·​can ˌən-ə-ˈmer-ə-kən How to pronounce un-American (audio)
: not American : not characteristic of or consistent with American customs, principles, or traditions

Examples of un-American in a Sentence

Recent Examples on the Web
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The thought of being limited to a choice between two Republicans — or two Democrats — for governor is unacceptable and un-American. George Skelton, Mercury News, 3 Apr. 2026 The faculty, to their credit, rejected Lowell’s proposal as un-American. David Blobaum, Chicago Tribune, 1 Apr. 2026 The thought of being limited to a choice between two Republicans — or two Democrats — for governor is unacceptable and un-American. Los Angeles Times, 30 Mar. 2026 Anything less is undemocratic and simply un-American. Phillip M. Bailey, USA Today, 27 Mar. 2026 See All Example Sentences for un-American

Word History

First Known Use

1818, in the meaning defined above

Time Traveler
The first known use of un-American was in 1818

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Cite this Entry

“Un-American.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/un-American. Accessed 6 Apr. 2026.

Kids Definition

un-American

adjective
un-Amer·​i·​can
ˌən-ə-ˈmer-ə-kən
: not American
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