| ominousness | |
| pathology(noun, unhealthiness) | |
| pestilence(noun, unhealthiness) | |
| sickness(noun, unhealthiness) | |
| virulent | |
| bug(pollution, taint, contamination) | |
| corruption(pollution, taint, contamination) | |
| defilement(pollution, taint, contamination) | |
| despitefulness(noun, venomousness, deadliness) | |
| dirt(pollution, taint, contamination) | |
| enmity(noun, venomousness, deadliness) | |
| epidemic(pollution, taint, contamination) | |
| evil(noun, venomousness, deadliness) | |
| flu(pollution, taint, contamination) | |
| germs(pollution, taint, contamination) | |
| hate(noun, venomousness, deadliness) | |
| hatred(noun, venomousness, deadliness) | |
| ill will(noun, venomousness, deadliness) | |
| impurity(pollution, taint, contamination) | |
| indignity(noun, venomousness, deadliness) |
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| APA | Smart Define. (2015). toxicity thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/toxicity/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxicity thesaurus" https://smartdefine.org/toxicity/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, toxicity thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/toxicity/thesaurus/synonyms>. |
| MLA | Smart Define. "toxicity thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/toxicity/thesaurus/synonyms> |