ex·trem·ism | \ ik-ˈstrē-ˌmi-zəm \

Definition of extremism 

1 : the quality or state of being extreme

2 : advocacy of extreme measures or views : radicalism

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Other words from extremism

extremist \ik-ˈstrē-mist \ noun or adjective

Examples of extremism in a Sentence

Recent Examples on the Web

These protesters and the extremism that's being articulated is one of the things that's driving this country apart. Fox News, "Leonard Leo on why Trump appointed Judge Kavanaugh," 10 July 2018 Social media companies have more vigorously starting shutting down Muslim extremism. Sara Miller Llana, The Christian Science Monitor, "The vicious circle of Islamist terrorism and far-right extremism," 6 July 2018 Democratic Representative Adam Schiff of California thanked her on Twitter for the piece—may well obfuscate the GOP’s true extremism on immigration. Sarah Jones, The New Republic, "Motherhood and the Morality of Trump’s Immigration Policy," 18 June 2018 Meanwhile, last year, the Bundeswehr (German armed forces) also uncovered widespread right-wing extremism in several units. David Martin, USA TODAY, "U.S. Ambassador to Germany Richard Grenell wants to 'empower' Europe's right," 4 June 2018 Ben Kuchera at Polygon writes that Far Cry 5 gestures toward serious issues like religious extremism or gun culture but gets nervous and pulls its punches, stopping short of being either entertainingly apolitical or seriously timely. Adi Robertson, The Verge, "Far Cry 5 wasn’t a game for the Trump era, but it tried to be one anyway," 6 Apr. 2018 In the second half of 2017, YouTube removed 150,000 videos for violent extremism. Stuart Macdonald, Scientific American, "How Tech Companies Are Trying to Disrupt Terrorist Social Media Activity," 26 June 2018 While antiterrorism experts consider the countries to be breeding grounds for violent extremism, the Supreme Court’s ruling will do nothing to hasten the end of the underlying conflicts there. New York Times, "Trump Travel Ban: How It Affects the Countries," 26 June 2018 Belgian prisons are notoriously dilapidated and overcrowded, and in recent years some have become breeding grounds for extremism. Milan Schreuer, BostonGlobe.com, "Belgium May Have Been Radicalized in Prison, Officials Say," 31 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'extremism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of extremism

1865, in the meaning defined at sense 1

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Statistics for extremism

Last Updated

21 Sep 2018

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Time Traveler for extremism

The first known use of extremism was in 1865

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English Language Learners Definition of extremism

: belief in and support for ideas that are very far from what most people consider correct or reasonable

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Britannica English: Translation of extremism for Arabic Speakers

Comments on extremism

What made you want to look up extremism? Please tell us where you read or heard it (including the quote, if possible).


occurring twice a year or every two years

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