| blistery | |
| cancerous(adjective, harmful, injurious, damaging, deadly) | |
| catching | |
| communicable | |
| consumptive(adjective, bad, painful, harmful, injurious) | |
| corrosive | |
| corrupt | |
| corruptive | |
| counterproductive | |
| critical(adjective, dangerous) | |
| crummy(adjective, unclean) | |
| cutthroat(adjective, harmful, injurious, damaging, deadly) | |
| cyanogenetic | |
| cyanogenic | |
| dead | |
| death-defying(adjective, dangerous) | |
| deathlike | |
| deathly(adjective, dangerous) | |
| defoliant | |
| dire(adjective, bad, painful, harmful, injurious) |
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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> |