124 entries under constant topic. ×

23
unremitting(adjective, strong, continue, firm, determined)
22
tireless(adjective, strong, firm, energetic, determined)
20
unflagging(adjective, strong, firm, certain, determined)
19
unrelenting(adjective, tough, firm, certain, determined)
19
unwavering(adjective, strong, flat, firm, intense)
18
incessant(adjective, strong, continue, firm, determined)
18
staunch(adjective, strong, tough, flat, firm)
18
unfaltering(adjective, strong, firm, intense, deliberate)
17
fixed(adjective, strong, tough, flat, firm)
17
unceasing(adjective, strong, continue, firm, determined)
15
continuing(adjective, strong, continue, firm, certain)
14
endless(adjective, continue, certain, determined, steady)
14
interminable(adjective, continue, determined, steady)
14
unending(adjective, continue, steady, current)
14
unfailing(adjective, strong, continue, firm, certain)
13
ceaseless(adjective, continue, certain, steady, regular)
13
chronic(adjective, continue, usual, regular, routine)
13
unflinching(adjective, strong, flat, firm, certain)
13
unswerving(adjective, strong, tough, firm, determined)
12
eternal(adjective, continue, certain, pause, steady)
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APASmart Define. (2015). persistent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/persistent/thesaurus/synonyms
ChicagoSmart Define. 2015. "persistent thesaurus" https://smartdefine.org/persistent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, persistent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/persistent/thesaurus/synonyms>.
MLASmart Define. "persistent thesaurus" 1 June 2015. Web. 20 September 2026. <https://smartdefine.org/persistent/thesaurus/synonyms>