155 entries under resolute topic. ×

5
loyal(adjective, firm, true, fixed)
5
pig-headed(adjective, determined, obstinate, stubborn)
5
unshakeable
4
brave(adjective, strong, tough, determined, vigorous)
4
deliberate(adjective, intense, determined, focused)
4
resistant(adjective, strong, determined, sturdy)
4
serious(adjective, strong, firm, determined)
4
solid(adjective, strong, sound, secure, tough)
4
spirited(adjective, determined, brave, daring)
4
thorough(adjective, precise, meticulous)
4
unchangeable(adjective, obstinacy)
3
brass-bound(adjective, determined, obstinate, uncompromising)
3
committed
3
fearless(adjective, strong, tough, vigorous, steady)
3
forceful(adjective, clear, strong, sound, tough)
3
game(strong, tough, determined, bold)
3
inelastic(adjective, determined, obstinate, uncompromising)
3
intent(adjective, strong, flat, intense, deliberate)
3
mettlesome
3
pat(adjective, difficult, determined, serious)
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 25 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>