Other forms: extremists
An extremist is somebody who holds and acts on views far from the centre. An extremist group, extremist views, branded an extremist.
The centre it measures from is whatever a society currently accepts, so the label moves with the times and is argued over accordingly. In practice it is used of those who reject compromise and, often, who accept violence. Note extreme beneath it, and the -ist that names a holder of views.
1nounextremistSomebody holding views far from the centre.
“Police arrested an extremist who was planning an attack on the city.”
extremist is a person.
Latin
extrēmus
Old French
extreme
English
extreme
English, today
extremist
From extreme + -ist. extreme Borrowed into late Middle English - from Old French extreme, from Latin extrēmus, the superlative of exter.
Etymology from Wiktionary, CC BY-SA