46 entries under persevering topic. ×

8
unremitting(adjective, strong, firm, energetic, determined)
7
firm(adjective, strong, tough, fit, solid)
7
unflinching(adjective, set, strong, firm, energetic)
6
enduring(adjective, set, strong, steady, constant)
6
indomitable(adjective, strong, firm, determined, steady)
6
pertinacious(adjective, strong, firm, energetic, determined)
5
devoted(adjective, strong, firm, determined, steady)
5
lasting
4
dedicated(adjective, strong, firm, solid, intense)
4
patient(adjective, strong, firm, energetic, determined)
4
strong(adjective, sound, tough, fit, firm)
3
abiding
3
unceasing(adjective, strong, firm, determined, steady)
2
continuing(adjective, strong, firm, certain, determined)
2
incessant(adjective, strong, firm, determined, steady)
2
plodding(adjective, strong, firm, determined, steady)
2
plugging(adjective, strong, firm, determined, active)
1
continued(adjective, strong, complete, firm, total)
1
eager beaver(expression, adjective, strong, firm, determined)
1
fireball(adjective, strong, firm, determined, steady)
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APASmart Define. (2015). unflagging thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unflagging/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflagging thesaurus" https://smartdefine.org/unflagging/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, unflagging thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unflagging/thesaurus/synonyms>.
MLASmart Define. "unflagging thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/unflagging/thesaurus/synonyms>