127 entries under tough topic. ×

10
mulish(adjective, determined, obstinate, stubborn)
10
single-minded(adjective, firm, sensible, solid)
10
sturdy(adjective, calm, strong, firm)
9
dedicated(adjective, set, clear, strong)
9
fearless(adjective, strong, firm, energetic)
8
game(adjective, strong, energetic, passionate)
8
gritty(adjective, strong, energetic, passionate)
8
hard(adjective, sharp, firm, intense)
8
headstrong(adjective, hard, sharp, firm)
8
inelastic(adjective, firm, determined, distant)
8
spunky(adjective, strong, firm, energetic)
8
valorous(adjective, strong, firm, ready)
8
zealous(adjective, activity, clear, severe)
7
eager(adjective, activity, clear, severe)
7
gallant(adjective, strong, firm, ready)
7
intense(adjective, clear, severe, keen)
7
intractable(adjective, appearance, hard, rough)
7
severe(adjective, terrible, fixed, rigid)
6
audacious(adjective, strong, energetic, passionate)
6
fast(adjective, calm, close, strong, secure)
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APASmart Define. (2015). resolute thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/resolute/thesaurus/synonyms
ChicagoSmart Define. 2015. "resolute thesaurus" https://smartdefine.org/resolute/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, resolute thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/resolute/thesaurus/synonyms>.
MLASmart Define. "resolute thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/resolute/thesaurus/synonyms>