100 entries under tough topic. ×
| steely(adjective, strong, hard, resolute) | |
| courageous(adjective, clear, strong, severe) | |
| implacable(adjective, strong, hard, harsh) | |
| pigheaded(adjective, firm, deliberate, usual) | |
| bound(adjective, set, strong, severe) | |
| recalcitrant(adjective, firm, persistent, obstinate) | |
| zealous(adjective, clear, severe, keen) | |
| contumacious(adjective, firm, persistent, obstinate) | |
| eager(adjective, clear, severe, keen) | |
| fearless(adjective, firm, energetic, steady) | |
| heroic(adjective, firm, resolute, brave) | |
| intense(adjective, clear, severe, keen) | |
| self-willed(adjective, firm, deliberate, fixed) | |
| spunky(adjective, strong, firm, energetic) | |
| aggressive(adjective, clear, severe, keen) | |
| bullheaded(adjective, firm, stiff, resolute) | |
| clear(adjective, severe, firm, exact) | |
| hardheaded(adjective, firm, resolute, obstinate) | |
| intrepid(adjective, strong, firm, energetic) | |
| pushy(adjective, clear, severe, energetic) |
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| APA | Smart Define. (2016). determined thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/determined/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "determined thesaurus" https://smartdefine.org/determined/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, determined thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/determined/thesaurus/synonyms>. |
| MLA | Smart Define. "determined thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/determined/thesaurus/synonyms> |