213 entries under adjective topic. ×
| incendiary | |
| injurious(harmful, damaging, deadly, fatal) | |
| insensitive | |
| internecine(harmful, injurious, damaging, deadly) | |
| lethiferous(harmful, injurious, damaging, deadly) | |
| lupine(violent, cruel, vicious, fierce) | |
| malevolent(strong, severe, harsh, intense) | |
| malicious(animal, mean, harsh, violent) | |
| menacing(strong, tough, severe, intense) | |
| no joke(expression, severe, weighty, demoniac) | |
| no laughing matter(expression, idiom, severe, weighty) | |
| noisome(unpleasant, horrible, disagreeable, dreadful) | |
| noxious(harmful, injurious, damaging, deadly) | |
| of consequence(expression, severe, weighty, demoniac) | |
| out for blood(expression, idiom, severe, weighty) | |
| pernicious(harmful, injurious, damaging, deadly) | |
| pestiferous(harmful, injurious, damaging, deadly) | |
| pestilential(harmful, injurious, damaging, deadly) | |
| playing hard ball(expression, idiom, severe, weighty) | |
| poisonous |
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| APA | Smart Define. (2016). fell thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/fell/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fell thesaurus" https://smartdefine.org/fell/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, fell thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/fell/thesaurus/synonyms>. |
| MLA | Smart Define. "fell thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/fell/thesaurus/synonyms> |