67 entries under noun topic. ×

15
permanence(strength, endurance, persistence, toughness)
5
immortality(age, future, durability, infinity)
4
imperishableness
3
imperishingness
3
perpetuity(age, future, infinity, forever)
2
durability(time, strength, firmness, toughness)
2
eternity
2
indestructibility(strength, toughness, durability, permanence)
2
infinity(age, future, perpetuity, forever)
1
aeon(age, future, infinity, perpetuity)
1
afterlife(age, future, infinity, perpetuity)
1
age(future, infinity, perpetuity, forever)
1
ages(age, future, infinity, perpetuity)
1
blue moon(expression, age, future, infinity)
1
constancy(strength, endurance, persistence, toughness)
1
deathlessness
1
durableness(strength, firmness, endurance, persistence)
1
endless time(expression, age, future, infinity)
1
endlessness(age, future, infinity, perpetuity)
1
everlastingness(age, future, durability, infinity)
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APASmart Define. (2015). imperishability thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/imperishability/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperishability thesaurus" https://smartdefine.org/imperishability/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, imperishability thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/imperishability/thesaurus/synonyms>.
MLASmart Define. "imperishability thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/imperishability/thesaurus/synonyms>