142 entries under adjective topic. ×
| extirpative(harmful, injurious, damaging, deadly) | |
| fateful | |
| festering | |
| final | |
| formidable | |
| grave | |
| hazardous | |
| impending | |
| indigestible | |
| lethiferous(harmful, injurious, damaging, deadly) | |
| murderous(injurious, damaging, destructive, fatal) | |
| murky | |
| obscene | |
| perilous | |
| precarious | |
| pressing | |
| scatological | |
| scruffy | |
| serious | |
| slaughterous(harmful, injurious, damaging, deadly) |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 26 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |