196 entries under tough topic. ×
| adamantine(adjective, strong, hard, resist) | |
| rigid(adjective, strong, hard, severe) | |
| serious(adjective, dull, strong, hard) | |
| cold(adjective, person, mean, severe) | |
| unforgiving(adjective, mean, hard, severe) | |
| adamant(adjective, mean, strong, hard) | |
| merciless(adjective, appearance, mean, hard) | |
| ruthless(adjective, animal, appearance, mean, hard) | |
| sour(adjective, appearance, hard, severe) | |
| angry(adjective, state, characteristic, person) | |
| iron(adjective, firm, resist, determined) | |
| remorseless(adjective, animal, mean, harsh) | |
| fierce(adjective, animal, appearance, mean, hard) | |
| frightening(adjective, offensive, dark, awful) | |
| inhuman(adjective, animal, mean, hard) | |
| vindictive(adjective, person, mean, hard) | |
| dogged(adjective, appearance, harsh, cruel) | |
| inhumane(adjective, animal, person, mean, hard) | |
| pitiless(adjective, animal, mean, hard) | |
| savage(adjective, animal, mean, hard) |
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| APA | Smart Define. (2016). grim thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/grim/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "grim thesaurus" https://smartdefine.org/grim/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, grim thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/grim/thesaurus/synonyms>. |
| MLA | Smart Define. "grim thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/grim/thesaurus/synonyms> |