26 entries under fixed topic. ×

18
eternal(adjective, pause, endless, lasting)
13
permanent(adjective, constant, enduring, lasting)
10
enduring(adjective, constant, lasting, durable)
8
unfading(adjective, stable, constant, lasting)
7
ageless(lasting, permanent, unchangeable, everlasting)
4
constant(adjective, stable, continuous, enduring)
3
unchanging(adjective, stable, constant, enduring)
2
unfailing(continuous, static, unchangeable, everlasting)
1
changeless(adjective, stable, constant, enduring)
1
continuing(static, unchangeable, recurrent, perpetual)
1
immutable(adjective, stable, constant, enduring)
1
invariable(stable, constant, enduring, lasting)
1
set(stable, constant, enduring, lasting)
1
unchangeable(adjective, static)
0
consistent(static, unchangeable)
0
equable(static, unchangeable)
0
even(static, unchangeable)
0
inflexible(static, unchangeable)
0
rigid(static, unchangeable)
0
same(static, unchangeable)
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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>