- Definitions|2
- Thesaurus|856
- Abbreviations|0
136 entries under hard topic. ×
| resolute(adjective, firm, determined, resolute) | |
| obstinate(adjective, mean, cruel, determined) | |
| firm(adjective, mean, strong, tough) | |
| inhuman(adjective, animal, mean, tough) | |
| steely(adjective, strong, tough, determined) | |
| vindictive(adjective, mean, tough, severe) | |
| determined(adjective, strong, tough, harsh) | |
| dogged(adjective, appearance, mean, tough) | |
| immovable(adjective, mean, strong, tough) | |
| stiff-necked(adjective, mean, strong, tough) | |
| unfeeling(adjective, animal, mean, severe) | |
| savage(adjective, animal, mean, tough) | |
| severe(adjective, appearance, mean, strong) | |
| tough(adjective, mean, strong, firm) | |
| unmerciful(adjective, mean, tough, severe) | |
| stony(adjective, mean, harsh, cold) | |
| unchangeable(adjective, resolute, rigid, inflexible) | |
| unsympathetic(adjective, animal, mean, severe) | |
| bullheaded(adjective, strong, tough, firm) | |
| callous(adjective, mean, severe, evil) |
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| APA | Smart Define. (2016). implacable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/implacable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "implacable thesaurus" https://smartdefine.org/implacable/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, implacable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/implacable/thesaurus/synonyms>. |
| MLA | Smart Define. "implacable thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/implacable/thesaurus/synonyms> |