extremist
//ɪkˈstriːmɪst//
Noun
extremistSingular
extremistsPlural
1
A person who holds extreme political or religious views, especially one who advocates illegal, violent, or other extreme action.
The extremist was arrested for planning a violent attack.
Adjective
extremistCanonical form
1
Relating to or characteristic of extremism or extremists.
The government is working to counter extremist ideologies.