181 entries under adjective topic. ×
| killing(death, deadly, lethal) | |
| pestilent(dangerous, deadly, lethal) | |
| dreadful | |
| grave(dangerous, crucial) | |
| incurable(pessimistic, deadly, final, desperate) | |
| injurious(bad, evil, wicked, harmful) | |
| murderous | |
| predestined(important, critical, doomed) | |
| tragic(bad, catastrophic) | |
| deleterious(bad, evil, harmful, injurious) | |
| destined(important, critical) | |
| final(important, critical, deadly, lethal) | |
| internecine(violent, cruel, harmful, killing) | |
| pestilential(bad, evil, harmful, injurious) | |
| severe | |
| unlucky(important, critical) | |
| venomous(bad, evil, harmful, dangerous) | |
| cataclysmal(help, destructive) | |
| decisive(important, critical) | |
| detrimental(bad, evil, harmful, dangerous) |
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| APA | Smart Define. (2016). fatal thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fatal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fatal thesaurus" https://smartdefine.org/fatal/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, fatal thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fatal/thesaurus/synonyms>. |
| MLA | Smart Define. "fatal thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/fatal/thesaurus/synonyms> |