supernaturalist
A person who believes in or advocates for the existence of supernatural phenomena. Often used in philosophical or religious contexts.
See also: 超自然論者 (ちょうしぜんろんしゃ)
He is a supernaturalist and believes in the existence of ghosts.
Among supernaturalists, this phenomenon is considered scientifically inexplicable.
超自然論者 is a synonym listed, also meaning 'supernaturalist'. The two terms are largely interchangeable, though 超自然主義者 may emphasize adherence to supernaturalism as a doctrine.
Compound of 超自然 (chōshizen, 'supernatural') + 主義 (shugi, 'doctrine') + 者 (sha, 'person'). The exact historical derivation is uncertain, but the word follows a common pattern for forming terms for adherents of a belief system.