Origin: Greek suffix -ist
Extremist has 4 different meanings across 2 categories:
a person who holds extreme views
"The local community held a meeting to discuss how to safely engage with the extremist group that had recently taken over the town hall."
A person who holds extreme views, especially one who advocates such views; a radical or fanatic.
"The local community held an emergency meeting after discovering that an extremist had been distributing pamphlets threatening violence at the town square."
Holding extreme views, especially on a political subject.
"The local council voted to ban the extremist group after their leader began shouting inflammatory slogans about changing the government's borders."