- Definitions|2
- Thesaurus|899
- Abbreviations|0
83 entries under determined topic. ×
| perverse(tough, difficult, awkward, fixed) | |
| pigheaded(tough, difficult, awkward, fixed) | |
| redoubtable(tough, difficult, vigorous, noble) | |
| rugged(adjective, strong, hard, tough) | |
| self-willed(tough, difficult, wild, awkward) | |
| spirited(adjective, strong, tough, bold) | |
| unceasing(adjective, strong, firm, steady) | |
| undeterred(adjective, strong, firm, steady) | |
| unstinted(adjective, strong, firm, steady) | |
| contradictory(fixed, stubborn, willful, dogmatic) | |
| convinced(fixed, stubborn, willful, dogmatic) | |
| dogmatic(fixed, stubborn, willful) | |
| eager beaver(expression, adjective, strong, firm) | |
| fixed(hard, resolute, rigid, inflexible) | |
| grind(adjective, strong, firm, steady) | |
| hardened(fixed, stubborn, willful, dogmatic) | |
| heady(fixed, stubborn, willful, dogmatic) | |
| incessant(adjective, strong, firm, steady) | |
| opinionated(fixed, stubborn) | |
| opinionative(fixed, stubborn, willful, dogmatic) |
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| APA | Smart Define. (2015). indomitable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/indomitable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indomitable thesaurus" https://smartdefine.org/indomitable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, indomitable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/indomitable/thesaurus/synonyms>. |
| MLA | Smart Define. "indomitable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/indomitable/thesaurus/synonyms> |