18 entries under lethal 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) | |
| pernicious(adjective, bad, evil, offensive, foul) | |
| fatal(adjective, bad, evil, harmful, dangerous) | |
| injurious(adjective, bad, harmful, dangerous, damaging) | |
| baleful(adjective, bad, evil, harmful, injurious) | |
| pestilential(adjective, bad, evil, harmful, injurious) | |
| mortal(adjective, bad, evil, harmful, dangerous) | |
| pestiferous(adjective, bad, evil, harmful, injurious) | |
| pestilent(adjective, unhealthy, harmful, fatal, unwholesome) | |
| internecine(adjective, bad, violent, harmful, injurious) | |
| murderous(adjective, injurious, damaging, destructive, fatal) | |
| suicidal(adjective, violent, cruel, harmful, injurious) |
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| APA | Smart Define. (2015). toxic thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/toxic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toxic thesaurus" https://smartdefine.org/toxic/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, toxic thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/toxic/thesaurus/synonyms>. |
| MLA | Smart Define. "toxic thesaurus" 17 July 2015. Web. 20 September 2026. <https://smartdefine.org/toxic/thesaurus/synonyms> |