67 entries under noun topic. ×

1
forever(age, future, infinity, perpetuity)
1
forever and a day(expression, age, future, infinity)
1
future(age, infinity, perpetuity, forever)
1
infiniteness(age, future, infinity, perpetuity)
1
infinitude(age, future, infinity, perpetuity)
1
kingdom come(expression, age, future, infinity)
1
lastingness(strength, endurance, persistence, toughness)
1
other world(expression, age, future, infinity)
1
solidity(firmness, hardness, soundness)
1
starch(strength, firmness, endurance, persistence)
1
strength(firmness, toughness, hardness, durability)
1
time without end(expression, idiom, age, future)
1
timelessness(age, future, infinity, perpetuity)
1
wild blue yonder(expression, age, future, infinity)
1
world without end(expression, age, future, infinity)
0
athanasia
0
backbone(strength, endurance, persistence, toughness)
0
day
0
endurance(strength, persistence, toughness, durability)
0
eon
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APASmart Define. (2015). imperishability thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/imperishability/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperishability thesaurus" https://smartdefine.org/imperishability/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, imperishability thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/imperishability/thesaurus/synonyms>.
MLASmart Define. "imperishability thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/imperishability/thesaurus/synonyms>