300 entries under adjective topic. ×

11
unswerving(set, strong, tough, firm)
11
untiring(quiet, understanding, gentle, energetic)
10
resolved(strong, flat, firm, certain)
10
industrious(keen, difficult, intense, energetic)
10
loyal(strong, firm, determined, bold)
10
relentless(strong, tough, firm, determined)
10
sedulous(thorough, meticulous, painstaking, assiduous)
10
unflinching(strong, flat, firm, certain)
9
continuing(verb, strong, firm, determined)
9
patient(strong, firm, energetic, endure)
9
pertinacious(strong, tough, firm, determined)
9
staunch(strong, tough, flat, firm)
8
dedicated(strong, firm, determined, steady)
8
devoted(strong, firm, determined, steady)
8
earnest(careful, serious, resolute, persistent)
8
insistent(resolute, demanding, tenacious)
8
lasting(verb, abiding)
8
purposeful(strong, tough, keen, firm)
8
set(strong, tough, flat, firm)
8
single-minded(tough, firm, determined, unreasonable)
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APASmart Define. (2015). persevering thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/persevering/thesaurus/synonyms
ChicagoSmart Define. 2015. "persevering thesaurus" https://smartdefine.org/persevering/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, persevering thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/persevering/thesaurus/synonyms>.
MLASmart Define. "persevering thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/persevering/thesaurus/synonyms>