0
hardened(familiar, established, confirmed, chronic, long-established)
0
haunting(persistent, lasting, remaining)
0
inborn(persistent, continuous, lasting, continuing, remaining)
0
intransitive
0
invariable
0
livelong
0
long-established(familiar, established)
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long-wearing
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maintaining(adjective, continuing)
0
never-ending
0
onrushing
0
over the hill
0
past it
0
past one's prime
0
practiced(familiar, established, long-established)
0
progressing(adjective, continuing)
0
prolonged(persistent, lasting, remaining)
0
recurring(persistent, continuous, lasting, continuing, remaining)
0
routine(persistent, continuous, lasting, continuing, remaining)
0
sempiternal
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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>