| menacing(adjective, dangerous, injurious, damaging, destructive) | |
| mephitical(adjective, help, poisonous) | |
| mucky(adjective, unclean) | |
| muddy(adjective, unclean) | |
| nasty(adjective, dangerous) | |
| nocuous(adjective, injurious, damaging, destructive, noxious) | |
| odious(adjective, unclean) | |
| putrid(adjective, heavy, rich, rare, unclean) | |
| risky(adjective, dangerous, injurious, damaging, destructive) | |
| severe(adjective, dangerous) | |
| shabby(adjective, unclean) | |
| sordid(adjective, unclean) | |
| toxin | |
| unsafe(adjective, dangerous, injurious, damaging, destructive) | |
| weed killer | |
| acute(adjective, dangerous) | |
| alarming(adjective, dangerous) | |
| annihilative(adjective, harmful, injurious, damaging, deadly) | |
| antibiotic | |
| antiseptic |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 23 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |