ex·​trem·​ism | \ ik-ˈstrē-ˌmi-zəm How to pronounce extremism (audio) \

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 How to pronounce extremist (audio) \ noun or adjective

Examples of extremism in a Sentence

Recent Examples on the Web

The news has raised larger questions about online platforms’ responsibility to deal with extremism. Colin Lecher, The Verge, "White House plans meeting with tech companies about online extremism," 7 Aug. 2019 Turkey and Qatar, the world’s only other Wahhabi state, are today the chief engines for Islamic extremism. Michael Rubin, National Review, "Turkey’s Africa Strategy Threatens to Breed Islamist Extremism," 26 June 2019 And, like other social networks like Facebook, hate speech is a major problem along with political extremism. Danielle Abril, Fortune, "YouTube Finally Bans Supremacist Videos After 14 Years. What Took So Long?," 5 June 2019 But the utopian ideals of the early internet are increasingly at odds with the view of it as a place for free speech at all costs, as the darker corners of the web have proved a fertile breeding ground for violent extremism. Julia Wick, Los Angeles Times, "Newsletter: 8chan and the future of the darkest corners of the internet," 6 Aug. 2019 Twitter’s decision to label tweets comes at a moment when technology companies are under immense pressure to better monitor and police their platforms for extremism, hate speech, violence, and abuse. Elizabeth Dwoskin, BostonGlobe.com, "Twitter adds labels for tweets that break its rules - a move with potentially stark implications for Trump’s account," 27 June 2019 Hoping to orient jurors, prosecutors called to the stand an expert in extremism, who offered a primer on both Antifa and the Proud Boys. Colin Moynihan, New York Times, "How Police Used Antifa Information to Investigate Far-Right Proud Boys," 8 Aug. 2019 The profession does not have psychiatric diagnoses for extremism or terrorism. Arash Javanbakht, The Conversation, "Can experts determine who might be a mass killer? 3 questions answered," 8 Aug. 2019 Ebner is a Senior Research Fellow at ISD, specialising in far-right extremism, reciprocal radicalisation and European terrorism prevention initiatives. Jacob Davey, Time, "We Analyzed How the "Great Replacement" and Far Right Ideas Spread Online. The Trends Reveal Deep Concerns.," 18 July 2019

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 2019

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Time Traveler for extremism

The first known use of extremism was in 1865

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More Definitions for extremism



English Language Learners Definition of extremism

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

More from Merriam-Webster on extremism

Rhyming Dictionary: Words that rhyme with extremism

Thesaurus: All synonyms and antonyms for extremism

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).


formidable, illustrious, or eminent

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