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)狂熱分子; 極耑分子[表不滿]

He was forceful, but by no means a zealot. 他很有說服力，但絕不是個狂熱分子。