zealot

A person who is fanatical and uncompromising in pursuit of their ideals.

• zealous/ˈzɛləs/(adj)热情的
• zealotry/ˈzɛlətri/(n)狂热

• religious zealot
• political zealot
• dangerous zealot
• zealotry and extremism

1. 1.Religious zealots carried out the attack in the name of their beliefs. (fanatics)
2. 2.His zealotry made it impossible to have a rational discussion with him. (extreme devotion)

• fanatic/fəˈnætɪk/— extremely enthusiastic, often dangerously
• extremist/ɪkˈstriːmɪst/— holding radical views
• militant/ˈmɪlɪtənt/— aggressively active for a cause

from Greek "zelotes" = one who is zealous — originally the Zealots were a Jewish faction that resisted Roman rule