218 entries under adjective topic. ×

15
timeless(continue, steady, constant, continuous)
15
undying(constant, continuous, endless, enduring)
14
immortal(continue, constant, endless, lasting)
13
unbroken(verb, sound, steady, stable)
12
infinite(end, constant, abundant, endless)
12
unchanging(steady, stable, regular, fixed)
11
non-stop
11
abiding(stable, fixed, persistent, constant)
11
ageless(fixed, unchanging, permanent, unchangeable)
10
fixed(dull, determined, usual, steady)
10
imperishable(constant, enduring, lasting, continual)
10
relentless(continue, determined, steady, persistent)
10
sempiternal(lasting, continual, eternal, perpetuity)
10
unvarying(steady, stable, regular, fixed)
9
continuing(wild, familiar, stable, fixed)
9
habitual(usual, steady, stable, regular)
9
immutable(steady, stable, regular, fixed)
9
recurrent(steady, regular, constant, continuous)
9
regular(verb, sound, usual, steady)
9
unfailing(continue, steady, fixed, persistent)
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APASmart Define. (2016). perpetual thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/perpetual/thesaurus/synonyms
ChicagoSmart Define. 2016. "perpetual thesaurus" https://smartdefine.org/perpetual/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, perpetual thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/perpetual/thesaurus/synonyms>.
MLASmart Define. "perpetual thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/perpetual/thesaurus/synonyms>