noun, na-adjective
Refers to excessive indulgence in sensual pleasures, often with a negative moral connotation. Can be used as a noun or adjectival noun (e.g., 淫逸な生活).
彼は淫逸な生活に溺れて財産を失った。
He lost his fortune indulging in a life of debauchery.
その小説は貴族の淫逸を描いている。
The novel depicts the licentiousness of the aristocracy.
Compound of 淫 (lewd, licentious) and 逸 (deviate, indulge). The exact historical derivation is uncertain, but the combination conveys excessive sensual indulgence.