Kanji 老 old man, old age, grow old Related words 不ふ 老ろう 不ふ 死し 不老不死 specifically means 'immortality' (never aging and never dying), while 不老 alone focuses on the aspect of not aging.
若わか 返がえ り 若返り means 'rejuvenation' or 'getting younger again', implying a change from an older state, whereas 不老 describes a constant state of not aging.
Word family perpetual youth and longevity; immortality
fountain of youth
perpetual youth and longevity
perpetual youth and longevity; long life without aging
Written forms 不ふ 老ろう Usage 99%
Standard kanji spelling; commonly used in compounds and set phrases.
ふろう Usage 1%
Etymology Compound of 不 (not) and 老 (to age). The word is of Chinese origin (cf. Chinese 不老 bùlǎo).
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