radicalism
ra·di·ca·lism
noun
1.
the political orientation of those who favor revolutionary change in government and society
Origin
From radical + -ism.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.