142 entries under grim topic. ×
| bullheaded(adjective, strong, hard, firm, difficult) | |
| dogged(adjective, mean, strong, hard, firm) | |
| unforgiving(adjective, hard, rough, harsh, cruel) | |
| unkind(adjective, mean, hard, cool, severe) | |
| distressing(adjective, severe, rough, nasty, harsh) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| hardheaded(adjective, strong, hard, determined, unreasonable) | |
| mulish(adjective, mean, strong, hard, firm) | |
| persevering(adjective, firm, determined, unreasonable) | |
| refractory(adjective, hard, rough, firm) | |
| unshakable(adjective, mean, strong, hard, firm) | |
| dour(adjective, hard, severe, sharp, firm) | |
| forbidding(adjective, strong, hard, severe, firm) | |
| iron(adjective, mean, strong, hard, firm) | |
| unmerciful(adjective, hard, harsh, cruel) | |
| unpleasant(adjective, mean, hard, cool, severe) | |
| barbarous(adjective, hard, harsh, violent, wild) | |
| disagreeable(adjective, nasty, harsh, offensive, dark) | |
| finicky(adjective, difficult, harsh, awkward) | |
| fussy(adjective, hard, difficult, harsh, awkward) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |