- Definitions|0
- Thesaurus|626
- Abbreviations|0
70 entries under unfeeling topic. ×
| hard(adjective, set, strong, tough, continue) | |
| hard-bitten(adjective, strong, hard, continue, solid) | |
| obdurate(adjective, strong, hard, tough, firm) | |
| resistant(adjective, strong, hard, solid, stiff) | |
| callous(adjective, set, strong, hard, tough) | |
| case-hardened(adjective, stubborn, hardened, callous) | |
| cold fish(expression, adjective, tough, harsh, cruel) | |
| coldblooded(adjective, severe, grim, bleak) | |
| coldhearted(adjective, hard, indifferent, unkind) | |
| cruel(adjective, strong, hard, tough, vicious) | |
| feelingless(adjective, hard, indifferent, unkind) | |
| hard-boiled(adjective, hard, tough, harsh, indifferent) | |
| hardboiled(adjective, tough, determined, serious, stiff) | |
| hardhearted(adjective, hard, indifferent, unkind) | |
| heartless(adjective, feeling, hard, cold, indifferent) | |
| impenetrable(adjective, set, strong, hard, firm) | |
| indurated(adjective, set, strong, hard) | |
| insensitive(adjective, hard, tough, indifferent, cruel) | |
| obtuse(adjective, hard, indifferent, unkind) | |
| pitiless(adjective, cruel, vicious, fixed) |
For more, visit
Hard_as_nails on
Power Thesaurus
| APA | Smart Define. (2015). hard as nails thesaurus. Retrieved September 30, 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 30, 2026). |
| Harvard | Smart Define 2015, hard as nails thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hard_as_nails/thesaurus/synonyms>. |
| MLA | Smart Define. "hard as nails thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/hard_as_nails/thesaurus/synonyms> |