33 entries under eternal topic. ×

23
immortal(adjective, constant, continuous, endless, indefinite)
22
everlasting(adjective, continue, steady, constant, continuous)
18
endless(adjective, continue, steady, constant, continuous)
17
ageless(adjective, change, endless, enduring, lasting)
17
perpetual(adjective, continue, steady, constant, continuous)
16
undying
15
permanent(adjective, steady, constant, endless, lasting)
14
dateless(adjective, change, steady, constant, lasting)
13
infinite(adjective, continuous, endless, infinite, boundless)
12
ceaseless(adjective, continue, constant, continuous, endless)
12
deathless
12
unending(adjective, continue)
10
never-ending(adjective, continuous, endless, infinite, continual)
8
lasting(adjective, vast, permanent, everlasting)
7
constant(adjective, continue, steady, regular, continuous)
7
perennial(adjective, constant, endless, indefinite, lasting)
7
sempiternal
7
abiding(adjective, lasting, permanent, everlasting)
7
enduring
6
continual(adjective, continue, constant, incessant)
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APASmart Define. (2016). timeless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/timeless/thesaurus/synonyms
ChicagoSmart Define. 2016. "timeless thesaurus" https://smartdefine.org/timeless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, timeless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/timeless/thesaurus/synonyms>.
MLASmart Define. "timeless thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/timeless/thesaurus/synonyms>