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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The small Christian community in the West Bank is facing increasing threats of extremism from various sides, including both Israeli settlers and Palestinian extremists, prompting them to escape the region. Landon Mion, FOXNews.com, 26 Dec. 2025 In November, the duo traveled to the southern Philippines, seen in the past as a hot spot for extremism. Mithil Aggarwal, NBC news, 24 Dec. 2025 To handle the transatlantic relationship with Trump, deter Russian aggression, address economic pressure from China, and ease worries at home, Germany needs Merz’s centrism, not the AfD’s extremism. Sudha David-Wilp, Foreign Affairs, 23 Dec. 2025 The two traveled to the Philippines last month, visiting a region that has endured a painful history of Islamist extremism, and homemade Islamic State flags were found in their car after the attack. Laura Sharman, CNN Money, 23 Dec. 2025 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 31 Dec. 2025.

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

More from Merriam-Webster on extremism

Last Updated: - Updated example sentences
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