- Definitions|2
- Thesaurus|899
- Abbreviations|0
74 entries under hard topic. ×
| harsh(adjective, strong, tough, sturdy) | |
| heavy(adjective, strong, tough, sturdy) | |
| insensible(adjective, strong, tough, sturdy) | |
| mortified(adjective, strong, tough, sturdy) | |
| rock hard(expression, adjective, strong, tough) | |
| steel(adjective, strong, tough, sturdy) | |
| stiff-necked(adjective, strong, tough, sturdy) | |
| stringent(resolute, rigid, inflexible, strict) | |
| thick(adjective, strong, tough, sturdy) | |
| tough inflexible(expression, strong, tough, sturdy) | |
| unadaptable(resolute, rigid, inflexible, strict) | |
| unalterable(determined, fixed, inflexible, stubborn) | |
| unsparing(adjective, strong, tough, sturdy) | |
| unswayable(resolute, rigid, inflexible, strict) |
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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> |