300 entries under adjective topic. ×

4
scrupulous(thorough, meticulous, painstaking)
4
serious(strong, firm, determined, resolute)
4
strong-minded(firm, determined, resolution, serious)
4
tough(firm, determined, unreasonable, grim)
4
unchangeable(strong, certain, definite, resolute)
4
unremitting(strong, firm, determined, steady)
4
unwearying
3
active(activity, keen, difficult, energetic)
3
conscientious(thorough, meticulous, painstaking)
3
dauntless(resolute, tenacious)
3
exact(thorough, meticulous, painstaking)
3
immutable
3
intransigent
3
punctilious(thorough, meticulous, painstaking)
3
remaining(verb, abiding)
3
ruthless
3
self-willed(tough, firm, unreasonable, grim)
3
spunky(resolute, tenacious)
3
stable(strong, flat, determined, definite)
3
stiff
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APASmart Define. (2015). persevering thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/persevering/thesaurus/synonyms
ChicagoSmart Define. 2015. "persevering thesaurus" https://smartdefine.org/persevering/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, persevering thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/persevering/thesaurus/synonyms>.
MLASmart Define. "persevering thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/persevering/thesaurus/synonyms>