noun
Taoist immortal; mountain wizard; supernatural being
Refers to a legendary immortal or hermit in Taoist tradition, often dwelling in mountains and possessing supernatural powers. Compare with 仙人, which is more common for 'hermit' or 'immortal'.
See also: 仙人
神仙思想は不老長寿を求める道教の教えに由来する。
The idea of Taoist immortals originates from Taoist teachings seeking eternal youth and longevity.
昔
In old tales, stories of encountering a mountain immortal deep in the mountains often appear.
noun
11th note of the ancient chromatic scale (approx. C)
Historical Japanese music term; part of the twelve-tone scale (十二律). Rarely used outside specialized contexts.
See also: 十二律
十二律のうち、神仙はほぼCの音にあたる。
Among the twelve pitches, 神仙 corresponds roughly to the note C.
仙人 is the common word for a Taoist hermit or immortal; 神仙 is more literary and often implies a higher, more mystical being.
From Chinese 神仙 (shénxiān), combining 神 'divine' and 仙 'immortal'. The musical sense is a specialized Japanese usage unrelated to the original meaning.