noun
conditioned existence; vicissitudes of life; perpetual change
Buddhist term for the transient, conditioned nature of all phenomena, often contrasted with 無為 (unconditioned). Also used in literary Japanese for the ups and downs of life.
仏教では、この世のすべては有為であり、常に変化していると説く。
Buddhism teaches that everything in this world is conditioned and constantly changing.
彼は有為転変の世の中を嘆いた。
He lamented the vicissitudes of life.