extremism

noun

ex·​trem·​ism ik-ˈstrē-ˌmi-zəm How to pronounce extremism (audio)
Synonyms of extremismnext
1
: the quality or state of being extreme
2
: advocacy of extreme measures or views : radicalism
extremist noun or adjective

Examples of extremism in a Sentence

Recent Examples on the Web
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Local law enforcement cannot work preventively alone, and our federal partners have a much clearer picture of online extremism. The Denver Post Editorial Board, Denver Post, 8 May 2026 But the flight to extremism, and the metastasizing inanity, is a two-party problem, and those of us who are Democrats and who care about the importance of regrowing the dormant (if not dead) political center have an obligation to try to do something about it. Jeffrey Robbins, Boston Herald, 4 May 2026 The Australian Jewish Association welcomed the report’s release but said it was marred by failing to address the form of antisemitic extremism said to have motivated the Bondi Beach shooters. Philissa Cramer, Sun Sentinel, 4 May 2026 Hyper-aggressive rhetoric on social media, political extremism, and the normalization of violence are certainly contributing factors. Andrew Cuomo, New York Daily News, 2 May 2026 See All Example Sentences for extremism

Word History

First Known Use

1865, in the meaning defined at sense 1

Time Traveler
The first known use of extremism was in 1865

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Cite this Entry

“Extremism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/extremism. Accessed 14 May. 2026.

Kids Definition

extremism

noun
ex·​trem·​ism ik-ˈstrē-ˌmiz-əm How to pronounce extremism (audio)
1
: the quality or state of being extreme
2
: belief in and support for extreme ideas especially in politics
extremist noun or adjective

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