80 entries under persistent topic. ×

64
enduring(verb, adjective, calm, strong, great)
53
stable(adjective, strong, tough, strain, firm)
52
permanent(adjective, calm, strong, secure, tough)
46
firm(adjective, calm, strong, secure, tough)
40
consistent(adjective, strain, certain, fixed, firmness)
37
constant(adjective, calm, strong, secure, tough)
37
unfluctuating(adjective, calm, strong, secure, strain)
33
perpetual(adjective, strain, stable, fixed, firmness)
30
steadfast(adjective, calm, strong, secure, strain)
26
invariable(adjective, calm, strong, secure, strain)
25
lingering(verb, adjective, great, strain, deep)
25
steady(adjective, calm, strong, secure, strain)
24
eternal(adjective, certain, pause, fixed)
23
unalterable(adjective, calm, strong, secure, strain)
22
everlasting(adjective, strong, stable, constant)
22
sustained(adjective, great, strain, deep, high)
20
abiding(verb, adjective, calm, strong, secure)
19
stabile(adjective, calm, strong, secure, strain)
15
fixed(adjective, strong, tough, firm, stable)
15
long-lived(adjective, continue, continuing, recurrent)
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APASmart Define. (2016). lasting thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/lasting/thesaurus/synonyms
ChicagoSmart Define. 2016. "lasting thesaurus" https://smartdefine.org/lasting/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, lasting thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/lasting/thesaurus/synonyms>.
MLASmart Define. "lasting thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/lasting/thesaurus/synonyms>