If you say that someone has extremist views, you disapprove of them because they believe in bringing about change by using violent or extreme methods.
his determination to purge the party of extremist views.
他清除极端主义政党的决心。
extremists
If you describe someone as an extremist, you disapprove of them because they try to bring about political change by using violent or extreme methods.
He said the country needed a strong intelligence service to counter espionage, terrorism, and foreign extremists.
他说该国需要一个强大的情报机构来反击间谍、恐怖主义以及外国极端分子。
A previously unknown extremist group has said it carried out Friday's bomb attack.
一个先前不为人知的极端分子组织声称其实施了周五的炸弹袭击。