| Synonyms | Length | Vowels | Syllables | |
|---|---|---|---|---|
| Agonising | 9 | 5 | 4 | 4 |
| Agonizing | 9 | 5 | 4 | 4 |
| Anarchist | 9 | 6 | 3 | 3 |
| Annihilating | 12 | 7 | 5 | 5 |
| Annihilative | 12 | 6 | 6 | 5 |
| Atrophy | 7 | 5 | 2 | 3 |
| Baleful | 7 | 4 | 3 | 3 |
| Baneful | 7 | 4 | 3 | 3 |
| Black | 5 | 4 | 1 | 1 |
| Blasting | 8 | 6 | 2 | 2 |
| Calamitous | 10 | 5 | 5 | 4 |
| Cataclysmal | 11 | 8 | 3 | 4 |
| Cataclysmic | 11 | 8 | 3 | 4 |
| Catastrophic | 12 | 8 | 4 | 4 |
| Consuming | 9 | 6 | 3 | 3 |
| Consumptive | 11 | 7 | 4 | 3 |
| Deadly | 6 | 4 | 2 | 2 |
| Demolishing | 11 | 7 | 4 | 4 |
| Demolitionary | 13 | 7 | 6 | 6 |
| Depredatory | 11 | 7 | 4 | 5 |
| Destroying | 10 | 7 | 3 | 3 |
| Destructive | 11 | 7 | 4 | 3 |
| Devastating | 11 | 7 | 4 | 4 |
| Devastation | 11 | 6 | 5 | 4 |
| Disastrous | 10 | 6 | 4 | 3 |
| Doomful | 7 | 4 | 3 | 2 |
| Excruciating | 12 | 7 | 5 | 5 |
| Fatal | 5 | 3 | 2 | 2 |
| Fateful | 7 | 4 | 3 | 3 |
| Fratricidal | 11 | 7 | 4 | 4 |
| Grievous | 8 | 4 | 4 | 2 |
| Harrowing | 9 | 6 | 3 | 3 |
| Heartbreaking | 13 | 8 | 5 | 3 |
| Heartrending | 12 | 8 | 4 | 3 |
| Heartsickening | 14 | 9 | 5 | 4 |
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