40 entries under poisonous topic. ×
| insalubrious(adjective, unhealthy, unclean, harmful, unwholesome) | |
| pestilential(adjective, bad, evil, harmful, injurious) | |
| poison(adjective, help) | |
| mortal(adjective, bad, evil, harmful, dangerous) | |
| pestiferous(adjective, bad, evil, harmful, injurious) | |
| unhealthful(adjective, offensive, foul, unhealthy, harmful) | |
| foul(adjective, offensive, unhealthy, unclean, harmful) | |
| noisome(adjective, bad, evil, harmful, injurious) | |
| pestilent(adjective, unhealthy, harmful, fatal, unwholesome) | |
| corrupting(harmful, injurious, damaging, destructive, catching) | |
| fetid(adjective, unclean, harmful) | |
| insalutary(adjective, harmful) | |
| internecine(adjective, bad, violent, harmful, injurious) | |
| mephitical(adjective, help) | |
| putrid(adjective, heavy, rich, rare, unclean) | |
| murderous(adjective, injurious, damaging, destructive, fatal) | |
| suicidal(adjective, violent, cruel, harmful, injurious) | |
| sickly | |
| spoiled | |
| stinking |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 29 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |