Synonyms for zealot

noun

zealot implies extreme or excessive devotion to a cause and vehement activity in its support zealots of reform; fanatic suggests the unreasonable overzealousness of one who goes to any length to maintain or carry out his or her beliefs a temperance fanatic; an enthusiast is one who is animated by an intense and eager interest in an activity, cause, etc. a sports enthusiast; bigot implies blind and intolerant devotion to a creed, opinions, etc. a religious bigot