radicalism

noun

rad·​i·​cal·​ism ˈra-di-kə-ˌli-zəm 

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

The following year she was elected to the Italian parliament for the maverick Radical Party, a bastion of anticlericalism, civil libertarianism, feminism, liberalism and radicalism in Italy. — ABC News, 11 Sep. 2026

Or Pablo Picasso, goaded into radicalism by the latest bizarre creations of Matisse, retreating to the Spanish mountain village of Gósol and, mere months later, beginning work on his proto-cubist masterpiece, Les Demoiselles d’Avignon. — Sebastian Smee, The Atlantic, 27 Aug. 2026

But Fosdick’s real radicalism lay in his insistence that Scripture was not static or inerrant but needed to be read in the context of an evolving culture and country. — Bill McKibben, New Yorker, 26 Aug. 2026

Like the Fondation Cartier, PAC and the Shed package their radicalism in deluxe architectural confections. — Justin Davidson, Curbed, 29 July 2026

Word History

First Known Use

1817, in the meaning defined at sense 1

Phrases Containing radicalism

• anti-radicalism

Rhymes for radicalism

• activism
• albinism
• altruism
• aneurism
• animism
• aphorism
• atomism
• barbarism
• bolshevism
• botulism
• brahmanism
• calvinism

Kids Definition

radicalism

noun

rad·​i·​cal·​ism ˈrad-i-kə-ˌliz-əm 

: the quality or state of being radical