1. a person who practices or believes in diabolism; a worshiper of the devil or evil
Usage: formal; often used in religious or historical contexts
2. a magician or performer who specializes in illusions involving devilish or supernatural themes
Usage: entertainment; historical

Examples

• The medieval inquisitors accused the accused of being a diabolist.
• In the 19th century, some stage performers marketed themselves as diabolists to attract audiences.
• The author's research into diabolism revealed the beliefs of various diabolist groups throughout history.
• The magician's diabolist act featured elaborate tricks with smoke and mirrors.
• Religious scholars studied the writings of alleged diabolists from the Renaissance period.