# extremism

/ˌɛkˈstɹɛmɪzəm/ (US) · /ɛkstɹˈiːmɪzəm/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/extremism
Updated: 2026-05-06

## Definition

the belief in very strong or radical ideas, especially in politics or religion. People who follow this often reject moderate views and may support extreme actions to reach their goals.

For teachers: the holding of extreme political or religious views; fanaticism. Refers to ideologies that sit far outside the societal mainstream and often advocate for radical change through non-democratic means.

## Examples

- The government is working to prevent political extremism.
- The rise of online extremism has led many social media platforms to update their content moderation policies.
- Scholars often distinguish between cognitive extremism, which involves holding radical beliefs, and behavioral extremism, which involves the actual use of violence to achieve ideological objectives.

## Usage notes

- Uncountable in its general sense; often paired with the prepositions 'in' or 'of'.

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