70 entries under persistent topic. ×

58
constant(adjective, sound, continue, strain, determined)
44
endless(adjective, sound, continue, determined, steady)
39
permanent(adjective, strain, usual, steady, stable)
38
everlasting(adjective, continue, steady, stable, fixed)
38
stable(adjective, strain, steady, regular, fixed)
36
consistent(adjective, strain, usual, steady, stable)
36
firm(adjective, strain, determined, familiar, steady)
36
unfluctuating(adjective, strain, steady, stable, regular)
32
lasting(adjective, strain, stable, fixed, firmness)
30
eternal(adjective, continue, pause, steady, fixed)
30
enduring(adjective, strain, determined, familiar, steady)
29
incessant(adjective, sound, continue, determined, steady)
28
ceaseless(adjective, sound, continue, steady)
28
unceasing(adjective, continue, steady, constant)
28
steady(adjective, strain, determined, familiar, usual)
27
unending(adjective, continue, steady, constant)
26
invariable(adjective, strain, steady, stable, regular)
24
continual(adjective, continue, determined, usual, steady)
24
unremitting(adjective, sound, continue, determined, steady)
22
continuous(adjective, sound, continue, steady)
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APASmart Define. (2016). perpetual thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/perpetual/thesaurus/synonyms
ChicagoSmart Define. 2016. "perpetual thesaurus" https://smartdefine.org/perpetual/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, perpetual thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/perpetual/thesaurus/synonyms>.
MLASmart Define. "perpetual thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/perpetual/thesaurus/synonyms>