| Solution | Length | |
|---|---|---|
| 4 letters | ||
| ugly | 4 | |
| 5 letters | ||
| awful | 5 | |
| scary | 5 | |
| 7 letters | ||
| serious | 7 | |
| ominous | 7 | |
| fearful | 7 | |
| scaring | 7 | |
| 8 letters | ||
| terrible | 8 | |
| worrying | 8 | |
| 9 letters | ||
| frightful | 9 | |
| startling | 9 | |
| unnerving | 9 | |
| 10 letters | ||
| TERRIFYING | 10 | |
| PORTENTOUS | 10 | |
| 11 letters | ||
| threatening | 11 | |
| troublesome | 11 | |