- Definitions|0
- Thesaurus|626
- Abbreviations|0
307 entries under adjective topic. ×
| callous(set, strong, hard, tough) | |
| capable(strong, sound, tough, solid) | |
| case-hardened(unfeeling, stubborn, hardened, callous) | |
| cold fish(expression, tough, harsh, cruel) | |
| coldblooded(severe, grim, unfeeling, bleak) | |
| coldhearted(hard, indifferent, unfeeling, unkind) | |
| complacent(calm, cool, steady, tranquil) | |
| composed(calm, cool, steady, unaffected) | |
| conditioned(strong, hard, solid, stiff) | |
| cool as cucumber(expression, idiom, calm, cool) | |
| crisp(tough, firm, fixed, distant) | |
| cruel(strong, hard, tough, vicious) | |
| disimpassioned(calm, cool, steady, tranquil) | |
| distant(tough, firm, fixed, rigid) | |
| do or die(expression, idiom, tough, firm) | |
| dug in(expression, tough, firm, distant) | |
| durable(strong, hard, sound, tough) | |
| enduring(strong, sound, tough, solid) | |
| energetic(strong, sound, tough, solid) | |
| equanimous(calm, cool, steady, tranquil) |
For more, visit
Hard_as_nails on
Power Thesaurus
| APA | Smart Define. (2015). hard as nails thesaurus. Retrieved September 28, 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 28, 2026). |
| Harvard | Smart Define 2015, hard as nails thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard_as_nails/thesaurus/synonyms>. |
| MLA | Smart Define. "hard as nails thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/hard_as_nails/thesaurus/synonyms> |