54 entries under harmful topic. ×
| disastrous(adjective, grave, injurious, damaging) | |
| evil(adjective, bad, injurious, damaging) | |
| internecine(adjective, violent, cruel, killing) | |
| pestilential(adjective, bad, evil, injurious) | |
| suicidal(adjective, violent, cruel, killing) | |
| unwholesome(adjective, rotten, poisonous, toxic) | |
| catastrophic(adjective, grave, injurious, damaging) | |
| cutthroat(adjective, unpleasant, grim, injurious) | |
| fell(adjective, unpleasant, grim, injurious) | |
| unhealthy(adjective, risky, killing, dangerous) | |
| corrupting(poisonous, toxic) | |
| noisome(adjective, bad, evil, injurious) | |
| pestiferous(adjective, bad, evil, injurious) | |
| annihilative(adjective, injurious, damaging, deadly) | |
| calamitous(adjective, grave, injurious, damaging) | |
| cancerous(adjective, injurious, damaging, deadly) | |
| cataclysmic(adjective, grave, injurious, damaging) | |
| consumptive(adjective, injurious, damaging, deadly) | |
| dire(adjective, grave, injurious, damaging) | |
| eradicative(adjective, injurious, damaging, deadly) |
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| APA | Smart Define. (2015). lethal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/lethal/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "lethal thesaurus" https://smartdefine.org/lethal/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, lethal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/lethal/thesaurus/synonyms>. |
| MLA | Smart Define. "lethal thesaurus" 17 July 2015. Web. 21 September 2026. <https://smartdefine.org/lethal/thesaurus/synonyms> |