83 entries under persistent topic. ×

5
ceaseless(adjective, constant, continuous, endless)
5
interminable(adjective, slow, late, continuous)
4
abiding(adjective, constant, continuous, endless)
4
continuing(lasting, recurrent, perpetual, remaining)
4
even(adjective, continuous, endless, relentless)
4
fixed(verb, adjective, constant, continuous)
4
incessant(adjective, constant, continuous, unyielding)
4
perennial(adjective, enduring, lasting, recurrent)
4
protracted(verb, adjective, great, slow, deep)
4
unchanging(adjective, constant, continuous, endless)
4
uniform(adjective, continuous, endless, relentless)
4
unremitting(adjective, constant, continuous, unyielding)
4
unvarying(adjective, continuous, endless, relentless)
2
chronic(adjective, constant, continuous, endless)
2
confirmed(verb, established, lasting, remaining)
2
endless(adjective, constant, continuous, relentless)
2
immutable(adjective, continuous, endless, relentless)
2
nonstop(adjective, constant, continuous, unyielding)
2
regular(adjective, constant, continuous, endless)
2
remaining
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APASmart Define. (2015). sustained thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sustained/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustained thesaurus" https://smartdefine.org/sustained/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, sustained thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sustained/thesaurus/synonyms>.
MLASmart Define. "sustained thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/sustained/thesaurus/synonyms>