2
perdurable(adjective, stable, constant, enduring, lasting)
2
sustainable
2
unfailing(fixed, continuous, static, unchangeable, everlasting)
2
unkillable
2
unquenchable
1
attestable
1
changeless(adjective, stable, fixed, constant, enduring)
1
coeternal
1
continued(continuous, lasting, permanent, everlasting, uninterrupted)
1
continuing(fixed, static, unchangeable, recurrent, perpetual)
1
deathlessness
1
demonstratable
1
diurnal(stable, constant, vast, enduring, lasting)
1
embalmed
1
eonian
1
establishable
1
eternities
1
ever-fresh
1
evincible
1
fadeless
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APASmart Define. (2016). imperishable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/imperishable/thesaurus/synonyms
ChicagoSmart Define. 2016. "imperishable thesaurus" https://smartdefine.org/imperishable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, imperishable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/imperishable/thesaurus/synonyms>.
MLASmart Define. "imperishable thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/imperishable/thesaurus/synonyms>