A person who denies or rejects the existence of the devil or evil supernatural forces (very rare theological term).
From Greek a- ('not') + diabolos ('devil') + -ist (one who practices or believes). A theological neologism from early modern religious debate.
Adiabolists were 17th-century thinkers who argued that 'the devil' was merely a metaphor for human weakness, not an actual supernatural being—a surprisingly modern-sounding argument for their time!
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