also: じんみらいざい
for eternity; forever and ever; to the end of time
A Buddhist term meaning 'throughout all future time', often used in vows or solemn expressions. Literary and somewhat archaic in modern Japanese; more common in religious or poetic contexts.
I will keep this vow for all eternity.
A heart of compassion that extends to the end of time.
永遠 is the common word for 'eternity' and is used in everyday language, while 尽未来際 is a formal Buddhist term with a more solemn, literary tone.
未来永劫 also means 'for all eternity' and is similarly literary, but 尽未来際 carries a stronger Buddhist nuance of spanning all future rebirths or kalpas.
Standard kanji spelling; the reading じんみらいさい is more common than じんみらいざい.
Alternate reading; less common than じんみらいさい.
From Buddhist terminology, composed of 尽 (exhaust), 未来 (future), and 際 (boundary/limit), literally 'to the limit of all future time'. The exact historical derivation is uncertain, but it is a set phrase used in sutras and vows.