36 entries under poisonous topic. ×
| injurious(adjective, person, help, mean, bad) | |
| detrimental(adjective, help, mean, bad, wrong) | |
| destructive(adjective, bad, severe, evil, awful) | |
| pernicious(adjective, bad, cruel, negative, wicked) | |
| deleterious(adjective, help, mean, bad, wrong) | |
| hurtful(adjective, help, mean, bad, wrong) | |
| noxious(adjective, mean, bad, wrong, evil) | |
| toxic(adjective, dangerous, injurious, damaging, deadly) | |
| baleful(adjective, negative, injurious, damaging, deadly) | |
| dangerous(adjective, bad, severe, offensive, awful) | |
| baneful(adjective, bad, evil, negative, wicked) | |
| deadly(adjective, bad, evil, cruel, unkind) | |
| fatal(adjective, bad, evil, dreadful, dangerous) | |
| virulent(adjective, unhealthy, injurious, hurtful, noxious) | |
| lethal(adjective, bad, evil, risky, dangerous) | |
| noisome(adjective, bad, evil, offensive, foul) | |
| venomous(adjective, bad, evil, dangerous, injurious) | |
| pestiferous(adjective, bad, injurious, damaging, deadly) | |
| suicidal(adjective, violent, cruel, injurious, damaging) | |
| unhealthful(adjective, offensive, foul, disgusting, injurious) |
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| APA | Smart Define. (2016). harmful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/harmful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harmful thesaurus" https://smartdefine.org/harmful/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, harmful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/harmful/thesaurus/synonyms>. |
| MLA | Smart Define. "harmful thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/harmful/thesaurus/synonyms> |