Dictionary.com
Thesaurus.com

radicalization

American  
[rad-i-kuh-luh-zey-shuhn] / ˌræd ɪ kə ləˈzeɪ ʃən /
especially British, radicalisation

noun

  1. the act or process of becoming more extreme, as in beliefs, actions, or politics.

    The group tries to counter radicalization by promoting nonviolence and tolerance through peer-to-peer education.


Etymology

Origin of radicalization

radical ( def. ) + -ization ( def. )

Explanation

The process of a person's views becoming more and more extreme is radicalization. Terrorism is one result of religious or political radicalization. Radicalization pushes people to one end or another of the political spectrum, or to an extreme or strict version of a religion. While this can have good or bad consequences (revolutions and social change often require radical action), the noun radicalization is frequently used in a negative way, to describe beliefs that lead to violent extremism. The Latin root of radicalization means "root," from the sense of "change from the roots."

Keep Reading on Vocabulary.com

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.

Flavio Rolim, head of the police's cyber hate crime unit, told AFP that while not everyone consuming this kind of content turns to violence, there was a "process of radicalization," of men.

From Barron's • Apr. 9, 2026

“If we’re saying that a platform’s recommendation engine is a defective product, that digital forensic trail, which used to be just evidence of radicalization, could now be evidence of liability.”

From Los Angeles Times • Mar. 28, 2026

But they represent only one of several potential pathways to radicalization.

From The Wall Street Journal • Dec. 17, 2025

And they operate within Roblox, they operate on Telegram channels, and I think we are woefully incompetent in dealing with this kind of internet radicalization.

From Slate • Sep. 16, 2025

With a group of men, silent as himself, he worked at the radicalization of the factories and labor unions.

From Erik Dorn by Hecht, Ben