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
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.
Police say Suleiman was referred in 2020 to the government’s Prevent program, which tries to steer individuals away from extremism. ABC News, 1 May 2026 Police said Suleiman was referred in 2020 to the government’s Prevent program, which tries to steer individuals away from extremism. Los Angeles Times, 1 May 2026 Police said that in 2020 he was referred to the government’s Prevent program, which tries to steer individuals away from extremism. Jill Lawless, Chicago Tribune, 30 Apr. 2026 In particular, when politicians use demonizing or dehumanizing rhetoric to attack their opponents— for example, using words that depict their opponents as subhuman— this fosters extremism and helps motivate extremists to hurt their opponents physically. James Piazza, Twin Cities, 30 Apr. 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

Browse Nearby Words

Cite this Entry

“Extremism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/extremism. Accessed 2 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

More from Merriam-Webster on extremism

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster