radicalism

noun

rad·​i·​cal·​ism ˈra-di-kə-ˌli-zəm How to pronounce radicalism (audio)
1
: the quality or state of being radical
2
: the doctrines or principles of radicals

Examples of radicalism in a Sentence

Recent Examples on the Web
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The credits cite as inspiration Thomas Pynchon’s novel Vineland, a tale concerned with the entropy of 1960s radicalism. David Sims, The Atlantic, 18 Sep. 2025 Both One Battle After Another and Vineland concern the ebb and flow of radicalism in America, bursts of activity followed by years of dangerous and disillusioning fallout. Richard Lawson, HollywoodReporter, 17 Sep. 2025 The film’s revolutionaries, who call themselves the French 75, come clothed in the take-no-prisoners rhetoric and fist-in-the-air attitude that’s been the signifier of righteous radicalism since the late ’60s. Owen Gleiberman, Variety, 17 Sep. 2025 And after Vance this week criticized The Nation for publishing a critical column about Kirk, which partially misquoted him, its publisher Bhaskar Sunkara underscored that the magazine did not take money from the two foundations that the vice president has accused of funding radicalism. David Weigel, semafor.com, 16 Sep. 2025 See All Example Sentences for radicalism

Word History

First Known Use

1817, in the meaning defined at sense 1

Time Traveler
The first known use of radicalism was in 1817

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Cite this Entry

“Radicalism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radicalism. Accessed 23 Sep. 2025.

Kids Definition

radicalism

noun
rad·​i·​cal·​ism ˈrad-i-kə-ˌliz-əm How to pronounce radicalism (audio)
: the quality or state of being radical

More from Merriam-Webster on radicalism

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