being absorbed in self-indulgent pleasures; giving oneself up to debauchery and dissipation
A literary or formal noun describing a state of complete absorption in hedonistic or dissolute activities. Often used in written descriptions of a lifestyle rather than in casual speech.
He led a life of dissipation and squandered his fortune.
In my youth, I spent my days absorbed in pleasure-seeking.
Compound of 遊蕩 (debauchery, dissipation) and 三昧 (absorption, from a Buddhist term for concentration). The exact historical derivation is uncertain, but the word follows a common pattern of combining a noun with 三昧 to indicate complete immersion.