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Synonyms

extremism

American  
[ik-stree-miz-uhm] / ɪkˈstri mɪz əm /

noun

  1. a tendency or disposition to go to extremes or an instance of going to extremes, especially in political matters.

    leftist extremism; the extremism of the Nazis.


Etymology

Origin of extremism

First recorded in 1860–65; extreme + -ism

Explanation

Extremism is a political or religious philosophy that's very far from the mainstream. Because it's so different from the average person's politics. being an anarchist is often considered extremism. When someone's beliefs are considered to be extreme by most people — if they think, for example, that people should be executed for eating certain foods or using certain words — that person is said to practice extremism, and is labelled an extremist. These words are almost always used in a derogatory way, by people who see themselves as centrist or moderate. The Latin root is extremus, "outermost" or "farthest."

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Vocabulary lists containing extremism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“This is about more than just about the Obamas,” added Brian Levin, a professor emeritus at Cal State San Bernardino and founder of the Center for the Study of Hate and Extremism.

From Los Angeles Times • Feb. 6, 2026

"Extremism, radicalism and populism feed off this lack of trust, disinformation, inequalities, disenchantment with the present and doubts about how to face the future."

From Barron's • Dec. 24, 2025

“The path from joking to dead serious gets carved out little by little,” said Pasha Dashtgard, the director of interventions at the Polarization and Extremism Research and Innovation Lab at American University.

From Slate • Dec. 5, 2025

In 2024 I helped the nonprofit Counter Extremism Project buy the house next door to Auschwitz, where camp commandant Rudolf Höss lived with his family.

From The Wall Street Journal • Nov. 20, 2025

Extremism is always a mark of enthusiasm, and enthusiasm accomplishes effects which must have been left forever unattained by mere regulated and conscientious effort.

From Greek Women by Carroll, Mitchell