Simple Definition of extremism

from our Learner's Dictionary

extremism

noun

ɪkˈstriːˌmɪzəm How to pronounce extremism (audio)
: belief in and support for ideas that are very far from what most people consider correct or reasonable
political extremism

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“Extremism.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/extremism. Accessed 17 Apr. 2026.

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