Radical

Radical (from Latin: '', root) may refer to:

==Politics and ideology== ===Politics=== Classical radicalism, the ideology and movement started in late 18th century Britain and spread to continental Europe and Latin America in the 19th century Radical politics, the political intent of fundamental societal change Radical Party (disambiguation), several political parties Radicals (UK), a British and Irish grouping in the early to mid-19th century Radicalization Politicians from the Radical Civic Union