Radicalism is belief in sweeping and fundamental change. Nineteenth-century radicalism.
The root of the word is a root, so radicalism means going to the root rather than being extreme. What counted as radicalism in one century is the settled arrangement of the next.
1nounradicalismBelief in sweeping and fundamental change.
“The radicalism of one decade became the law of the following one.”
radicalism is a belief.
Proto-Indo-European
*wréh₂ds
Latin
rādīcālis — of or pertaining to the root, having roots, radical
Middle English
radical
English
radical
English, today
radicalism
From radical + -ism. radical Middle English radical, from Latin rādīcālis (“of or pertaining to the root, having roots, radical”). Compare grassroots.
Etymology from Wiktionary, CC BY-SA