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radicalism

[rad-i-kuh-liz-uh m]
noun
  1. the holding or following of radical or extreme views or principles.
  2. the principles or practices of radicals.
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Origin of radicalism

First recorded in 1810–20; radical + -ism
Related formsan·ti·rad·i·cal·ism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for anti-radicalism

radicalism

noun
  1. the principles, desires, or practices of political radicals
  2. a radical movement, esp in politics
  3. the state or nature of being radical, esp in politics
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Derived Formsradicalistic, adjectiveradicalistically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for anti-radicalism

radicalism

n.

1819 in the political sense, from radical (adj.) + -ism.

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Online Etymology Dictionary, © 2010 Douglas Harper