- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
193 entries under determined topic. ×
| strong-willed(adjective, strong, tough, firm, intense) | |
| sturdy(adjective, calm, strong, tough, firm) | |
| courageous(adjective, clear, strong, tough, severe) | |
| dauntless(adjective, noble, bold, resolute) | |
| unshakeable(adjective, resolute, uncompromising) | |
| certain(adjective, good, strong, complete, easy) | |
| decisive(adjective, good, strong, honest, solid) | |
| plucky(adjective, noble, resolute, courageous) | |
| steely(adjective, resolute, strict, obstinate) | |
| hard-nosed(adjective, firm, resolute, obstinate) | |
| headstrong(adjective, tough, firm, unreasonable) | |
| purposeful(adjective, strong, tough, keen, firm) | |
| regular(adjective, dull, firm, solid) | |
| set in stone(expression, adjective, idiom, calm, strong) | |
| unshaken(adjective, clear, strong, flat, firm) | |
| adamantine(adjective, tough, firm, resolute) | |
| confirmed(adjective, certain, usual, steady) | |
| contrary(adjective, resolute, persistent, obstinate) | |
| deep(adjective, clear, tough, severe) | |
| implacable(adjective, tough, firm, resolute) |
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| APA | Smart Define. (2016). steadfast thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/steadfast/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "steadfast thesaurus" https://smartdefine.org/steadfast/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, steadfast thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/steadfast/thesaurus/synonyms>. |
| MLA | Smart Define. "steadfast thesaurus" 11 March 2016. Web. 24 September 2026. <https://smartdefine.org/steadfast/thesaurus/synonyms> |