300 entries under adjective topic. ×

1
fast(strong, tough, firm, determined)
1
fearless
1
fervent
1
fireball(strong, keen, firm, intense)
1
flintlike
1
forgiving(calm, quiet, understanding, gentle)
1
grasping
1
grind(strong, firm, lively, determined)
1
hard-as-nails(serious, resolute, persistent, unwavering)
1
hardboiled(serious, resolute, persistent, unwavering)
1
hell-bent
1
hustling(lively, active, busy, occupied)
1
in conference(expression, active, occupied, working)
1
incessant(strong, firm, determined, active)
1
inexhaustible(strong, firm, energetic, determined)
1
intense(keen, energetic, lively, vigorous)
1
iron-willed
1
maintained
1
mean business(expression, serious, resolute, persistent)
1
meek(calm, quiet, understanding, gentle)
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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>