- Definitions|2
- Thesaurus|899
- Abbreviations|0
285 entries under adjective topic. ×
| loyal | |
| obdurate(strong, hard, tough, difficult) | |
| solid | |
| spunky(strong, bold, resolute, spirited) | |
| stern(resolute, persistent, obstinate, insistent) | |
| strict(strong, hard, tough, resolute) | |
| unchangeable(hard, resolute, rigid, inflexible) | |
| undefeatable(steadfast, unyielding) | |
| undefeated | |
| vigorous(strong, powerful, determined, noble) | |
| adamant(strong, hard, tough, determined) | |
| bulldogged | |
| daring(strong, bold, resolute, spirited) | |
| dedicated(strong, firm, determined, steady) | |
| difficult(great, tough, wild, awkward) | |
| earnest | |
| froward(irritable, persistent, restless, obstinate) | |
| gallant(strong, tough, determined, noble) | |
| hard-shell(strong, hard, tough, persistent) | |
| hardy(strong, tough, powerful, bold) |
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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> |