| addicted(adjective, passionate, fervent, zealous, dedicated) |
| compulsive(adjective, compulsive) |
| crusader(noun, radical, zealot, fundamentalist, perfectionist) |
| fervent(adjective, keen, passionate, enthusiastic, ardent) |
| fervid(adjective, keen, passionate, enthusiastic, ardent) |
| fundamentalist(noun, adjective, right, radical, conservative) |
| iconoclast(noun, zealot, heterodoxy) |
| illiberal(adjective, discrimination, racism, nationalism) |
| militant(noun, interest, radical, rebel, progressive) |
| narrow-minded(adjective, fervent, discrimination, zealous, dedicated) |
| pietist(noun, attitude, behavior, sexual moral, sexual activity) |
| purist(noun, attitude, behavior, sexual moral, sexual activity) |
| religionist(noun, attitude, behavior, sexual moral, sexual activity) |
| revolutionist(noun, person, concern, edge, radical) |
| stickler(noun, obstinacy) |
| ultra(noun, adjective, person, concern, edge) |
| votary(noun, religion, love, belief, supporter) |
| adherent(noun, supporter, radical, fan, follower) |
| booster(noun, supporter, fan, attendant, follower) |
| dogmatic(adjective, fervent, discrimination, zealous, dedicated) |