Dictionary.com
Thesaurus.com
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."

Keep Reading on Vocabulary.com

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.

See Examples For:

The memoir is an account of escaping religious extremism and redefining herself apart from the mountains that raised her and the elite society to which she fled.

From The Wall Street Journal Aug. 7, 2026

“We see them as intellectualizing or sanitizing radical-right ideas that are then taken up by the parties in power,” said Allchorn, the U.K. extremism expert.

From Salon Jul. 21, 2026

China vehemently denies these allegations, saying its policies have rooted out extremism in Xinjiang and boosted economic development.

From Barron's Jun. 11, 2026

But Joe Mulhall, the research director of Hope not Hate, a campaign group focused on combating extremism on what they describe as the far right, has stronger words.

From BBC Jun. 5, 2026

I was slightly giddy with the force of his personality but the extremism of the offer was appealing as well.

From "The Secret History" by Donna Tartt

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training