84 entries under harmful topic. ×
| noisome(adjective, bad, taste, offensive, awful) | |
| detrimental(adjective, mean, bad, nasty, offensive) | |
| hurtful(adjective, bad, offensive, cruel, foul) | |
| mephitic(adjective, help, bad, evil, offensive) | |
| septic(adjective, unhealthy, insalubrity) | |
| toxicant(adjective, help) | |
| pestilent(adjective, unhealthy, deadly, fatal) | |
| unwholesome(adjective, offensive, foul, disgusting, unhealthy) | |
| foul(adjective, bad, taste, offensive, awful) | |
| pestilential(adjective, bad, foul, injurious) | |
| poison(adjective, help, bad, evil, offensive) | |
| damaging(adjective, bad, evil, offensive, cruel) | |
| mischievous(adjective, mean, bad, evil, nasty) | |
| nocuous(adjective, cruel, unkind, distressing) | |
| ruinous(adjective, bad, distressing, injurious) | |
| corrupt(adjective, offensive, foul, unhealthy) | |
| corrupting(distressing, injurious, damaging, destructive) | |
| morbid(adjective, taste, awful, terrible) | |
| pestiferous(adjective, bad, offensive, foul, disgusting) | |
| corruptive |
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| APA | Smart Define. (2015). poisonous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/poisonous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "poisonous thesaurus" https://smartdefine.org/poisonous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, poisonous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/poisonous/thesaurus/synonyms>. |
| MLA | Smart Define. "poisonous thesaurus" 19 August 2015. Web. 28 September 2026. <https://smartdefine.org/poisonous/thesaurus/synonyms> |