The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
radicalism
1 ENTRIES FOUND:
radicalism
(noun)
radicalism
/
ˈ
rædɪkəˌlɪzəm/
noun
radicalism
/
ˈ
rædɪkəˌlɪzəm/
noun
Britannica Dictionary definition of RADICALISM
[
noncount
]
:
the opinions and behavior of people who favor extreme changes especially in government
:
radical political ideas and behavior
political
radicalism
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
ASK THE EDITOR
Why do we say "did you know" rather than "do you know"?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
protocol
:
a system of rules that explain the correct conduct and procedures to follow in formal situations
Learn More »