40 entries under poisonous topic. ×
| deadly(adjective, bad, evil, unhealthy, harmful) | |
| harmful(adjective, dangerous, injurious, damaging, deadly) | |
| noxious(adjective, unhealthy, harmful, dangerous, injurious) | |
| venomous(adjective, help, bad, evil, hateful) | |
| virulent(adjective, help, unhealthy, harmful, noxious) | |
| baneful(adjective, bad, offensive, foul, unhealthy) | |
| deleterious(adjective, bad, evil, offensive, foul) | |
| lethal(adjective, bad, evil, harmful, dangerous) | |
| pernicious(adjective, bad, evil, offensive, foul) | |
| destructive(adjective, unhealthy, harmful, dangerous, injurious) | |
| fatal(adjective, bad, evil, harmful, dangerous) | |
| dangerous(adjective, harmful, injurious, damaging, fatal) | |
| detrimental(adjective, bad, evil, offensive, foul) | |
| injurious(adjective, bad, harmful, dangerous, damaging) | |
| baleful(adjective, bad, evil, harmful, injurious) | |
| malignant(adjective, offensive, foul, unhealthy, dangerous) | |
| toxicant(adjective, help) | |
| septic(adjective, unhealthy, unclean, insalubrity) | |
| mephitic(adjective, help, insalubrity) | |
| hurtful(adjective, bad, evil, harmful, injurious) |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 28 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |