- Definitions|0
- Thesaurus|626
- Abbreviations|0
100 entries under hard topic. ×
| strong(adjective, set, sound, tough) | |
| tough(adjective, strong, sound, continue) | |
| hardy(adjective, set, strong, sound) | |
| rugged(adjective, set, strong, sound) | |
| stalwart(adjective, strong, sound, tough) | |
| dense(adjective, set, strong, tough) | |
| flinty(adjective, strong, firm, solid) | |
| hard-bitten(adjective, strong, continue, solid) | |
| lusty(adjective, strong, solid, stiff) | |
| mighty(adjective, strong, sound, tough) | |
| obdurate(adjective, strong, tough, firm) | |
| resistant(adjective, strong, solid, stiff) | |
| robust(adjective, strong, sound, tough) | |
| rocky(adjective, set, strong, compact) | |
| solid(adjective, set, strong, sound) | |
| steely(adjective, strong, tough, stiff) | |
| stony(adjective, set, strong, indifferent) | |
| stout(adjective, strong, sound, tough) | |
| strapping(adjective, strong, sound, tough) | |
| sturdy(adjective, strong, sound, tough) |
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| APA | Smart Define. (2015). hard as nails thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hard_as_nails/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hard as nails thesaurus" https://smartdefine.org/hard_as_nails/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, hard as nails thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hard_as_nails/thesaurus/synonyms>. |
| MLA | Smart Define. "hard as nails thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/hard_as_nails/thesaurus/synonyms> |