1
hardy
1
hoary
1
immortal
1
imperishable
1
in the flesh(expression, idiom)
1
inbred(persistent, continuous, hardened, lasting, continuing)
1
incurable(persistent, continuous, hardened, lasting, continuing)
1
indestructible
1
indissoluble
1
ineradicable(persistent, continuous, hardened, lasting, continuing)
1
infinite
1
ingrained(persistent, continuous, hardened, lasting, continuing)
1
inspirited
1
instinct with life(expression, idiom)
1
intransient
1
lengthy
1
live
1
living
1
long-drawn-out
1
long-range
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APASmart Define. (2016). long-lived thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/long-lived/thesaurus/synonyms
ChicagoSmart Define. 2016. "long-lived thesaurus" https://smartdefine.org/long-lived/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, long-lived thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/long-lived/thesaurus/synonyms>.
MLASmart Define. "long-lived thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/long-lived/thesaurus/synonyms>