88 entries under persistent topic. ×

2
day-and-night(adjective, constant, continuous, endless)
2
homogeneous(adjective, continuous, endless, relentless)
2
interminate(adjective, continuous, endless, infinite)
2
persisting(adjective, determined, steady, stable)
2
unflagging(adjective, strong, firm, determined, steady)
1
bound(adjective, determined, steady, resolute)
1
bound and determined(expression, adjective, idiom, determined)
1
confirmed(adjective, steady, regular, even)
1
determined(adjective, strong, firm, vigorous, steady)
1
dogged(adjective, strong, firm, determined, steady)
1
firm(adjective, strong, determined, steady, resolute)
1
fixed(adjective, determined, steady, resolute)
1
hanging tough(expression, adjective, constant, pitiless)
1
hard-headed(adjective, constant, pitiless, unyielding)
1
immutable(adjective, constant, continuous, endless)
1
intransigent(adjective, constant, pitiless, unyielding)
1
iron-fisted(adjective, constant, pitiless, unyielding)
1
merciless(adjective, constant, pitiless, unyielding)
1
neverending(adjective, constant, continuous, unyielding)
1
persevering(adjective, strong, firm, determined, active)
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APASmart Define. (2015). incessant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/incessant/thesaurus/synonyms
ChicagoSmart Define. 2015. "incessant thesaurus" https://smartdefine.org/incessant/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, incessant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/incessant/thesaurus/synonyms>.
MLASmart Define. "incessant thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/incessant/thesaurus/synonyms>