zealot

1. N-COUNT If you describe someone as a zealot, you think that their views and actions are very extreme, especially in following a particular political or religious belief. (尤指政治或宗教的)狂热分子; 极端分子[表不满]

He was forceful, but by no means a zealot. 他很有说服力，但绝不是个狂热分子。