136 entries under severe topic. ×
| hateful(adjective, animal, mean, evil) | |
| having a killer instinct(expression, adjective, idiom, mean) | |
| immutable(adjective, hard, rough, harsh) | |
| iron-fisted(adjective, mean, harsh, cruel) | |
| mean machine(expression, adjective, mean, harsh) | |
| morose(adjective, nasty, hostile, angry) | |
| mortal(adjective, mean, harsh, cruel) | |
| narrow(adjective, hard, rough, harsh) | |
| perceptive(adjective, clear, strong, tough) | |
| refractory(adjective, hard, rough, harsh) | |
| resentful(adjective, nasty, mad, hostile) | |
| resolute(adjective, clear, hard, tough) | |
| ruffianly(adjective, hard, rough, harsh) | |
| sour(adjective, bad, hard, tough) | |
| steadfast(adjective, clear, tough, keen) | |
| taut(adjective, hard, rough, harsh) | |
| unalterable(adjective, hard, rough, harsh) | |
| unappeasable(adjective, mean, harsh, cruel) | |
| unbending(adjective, clear, hard, tough) | |
| uncalled-for(adjective, mean, harsh, cruel) |
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| APA | Smart Define. (2016). fierce thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fierce/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fierce thesaurus" https://smartdefine.org/fierce/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, fierce thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fierce/thesaurus/synonyms>. |
| MLA | Smart Define. "fierce thesaurus" 28 March 2016. Web. 24 September 2026. <https://smartdefine.org/fierce/thesaurus/synonyms> |