- Definitions|2
- Thesaurus|249
- Abbreviations|0
| unlucky(adjective, unfortunate, doomed) | |
| appalling | |
| awful | |
| baleful(adjective, harmful, injurious, damaging, deadly) | |
| consumptive(adjective, harmful, injurious, damaging, deadly) | |
| crippling(adjective, harmful, injurious, damaging, destructive) | |
| crushing | |
| dangerous(injurious, damaging, destructive) | |
| desolating | |
| detrimental(adjective, harmful, unfortunate, injurious, damaging) | |
| grievous | |
| internecine(adjective, harmful, injurious, damaging, deadly) | |
| subversive(injurious, damaging, destructive) | |
| suicidal(adjective, harmful, injurious, damaging, deadly) | |
| violent | |
| wreckful(adjective, harmful, injurious, damaging, deadly) | |
| adverse(dreadful, unfortunate, injurious, damaging, destructive) | |
| afflicted(miserable, wretched, unfortunate, doomed, unsuccessful) | |
| annihilative(adjective, harmful, injurious, damaging, deadly) | |
| bad(injurious, damaging, destructive) |
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| APA | Smart Define. (2015). cataclysmic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/cataclysmic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cataclysmic thesaurus" https://smartdefine.org/cataclysmic/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, cataclysmic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/cataclysmic/thesaurus/synonyms>. |
| MLA | Smart Define. "cataclysmic thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/cataclysmic/thesaurus/synonyms> |