extremist
adjective/ɪkˈstriːmɪst/
/ɪkˈstriːmɪst/
[usually before noun] (disapproving)- connected with or belonging to people whose opinions, especially about religion or politics, are extreme, and who may do things that are violent or illegal for what they believe
- extremist groups
- violent extremist ideology
- The problem lies with the extremist elements in the party.
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extremist