54 entries under harmful topic. ×
| mortal(adjective, bad, evil, dangerous) | |
| pestiferous(adjective, bad, evil, injurious) | |
| unhealthful(adjective, offensive, foul, unhealthy) | |
| evil(adjective, bad, nasty, offensive, foul) | |
| foul(adjective, offensive, unhealthy, unclean) | |
| noisome(adjective, bad, evil, injurious) | |
| pestilent(adjective, unhealthy, fatal, unwholesome) | |
| ruinous(adjective, bad, evil, injurious) | |
| calamitous(adjective, injurious, damaging, deadly) | |
| cataclysmic(adjective, injurious, damaging, deadly) | |
| catastrophic(adjective, injurious, damaging, deadly) | |
| corrupting(injurious, damaging, destructive, catching) | |
| devastating(adjective, bad, evil, wicked) | |
| disastrous(adjective, injurious, damaging, deadly) | |
| fell(adjective, injurious, damaging, deadly) | |
| fetid(adjective, unclean, poisonous) | |
| insalutary(adjective, poisonous) | |
| internecine(adjective, bad, violent, injurious) | |
| putrid(adjective, heavy, rich, rare, unclean) | |
| annihilative(adjective, injurious, damaging, deadly) |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 26 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |