- Definitions|2
- Thesaurus|697
- Abbreviations|0
38 entries under mean topic. ×
| hard(adjective, strong, tough, harsh) | |
| bullhead(adjective, hard, tough, harsh) | |
| cold fish(expression, adjective, hard, stubborn) | |
| hard-boiled(adjective, hard, tough, harsh) | |
| hard-hearted(adjective, hard, tough, harsh) | |
| harsh(adjective, hard, tough, inflexible) | |
| implacable(adjective, hard, tough, firm) | |
| indurate(adjective, hard, tough, harsh) | |
| iron(adjective, strong, hard, tough) | |
| perverse(adjective, hard, tough, firm) | |
| pigheaded(adjective, hard, tough, firm) | |
| stiff-necked(adjective, hard, tough, firm) | |
| thick-skinned(adjective, hard, tough, harsh) | |
| tough nut to crack(expression, adjective, idiom, hard) | |
| uncompassionate(adjective, hard, tough, harsh) | |
| uncooperative(adjective, hard, tough, harsh) | |
| unimpressible(adjective, hard, tough, harsh) | |
| unsympathetic(adjective, hard, tough, harsh) |
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| APA | Smart Define. (2015). unshakable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unshakable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unshakable thesaurus" https://smartdefine.org/unshakable/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, unshakable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unshakable/thesaurus/synonyms>. |
| MLA | Smart Define. "unshakable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/unshakable/thesaurus/synonyms> |