ultraradical

/ˌʌltrəˈrædɪkəl/
adjective
  1. Extremely extreme or revolutionary in ideas, especially in politics or social change.
    • Her ultraradical views on education made her unpopular with the school board.
    • The ultraradical group called for the complete overthrow of the government.
    • Some historians describe the French Revolution's later phase as ultraradical.
Antonyms
noun
  1. A person who holds extremely extreme or revolutionary views.
    • In the 1960s, ultraradicals pushed for immediate and total change.
    • The debate grew heated when an ultraradical took the stage.
    • The ultraradicals refused to compromise on any of their demands.
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