98 entries under harsh topic. ×
| dyed-in-the-wool(adjective, set, hard, severe) | |
| ferocious(adjective, hard, rough, cruel) | |
| go for broke(expression, adjective, idiom, cruel) | |
| hang-tough(adjective, cruel, determined, fierce) | |
| hang in(expression, adjective, cruel, determined) | |
| hard-boiled(adjective, hard, severe, rough, firm) | |
| iron-fisted(adjective, severe, rigid, tight) | |
| mortal(adjective, cruel, determined, fierce) | |
| picky(tough, severe, rigid, tight) | |
| poignant(adjective, severe, rigid, tight) | |
| remorseless(adjective, cruel, determined, fierce) | |
| stop at nothing(expression, adjective, idiom, cruel) | |
| unappeasable(adjective, cruel, determined, fierce) | |
| undeviating(adjective, cruel, determined, fierce) | |
| unstoppable(adjective, cruel, determined, fierce) | |
| valid(adjective, severe, rigid, tight) | |
| vindictive(adjective, cruel, determined, fierce) | |
| aching(adjective, upset, rough, tender) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 25 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |