| Solution | Length | |
|---|---|---|
| 3 letters | ||
| set | 3 | |
| 4 letters | ||
| fait | 4 | |
| 5 letters | ||
| fatal | 5 | |
| 6 letters | ||
| ruined | 6 | |
| undone | 6 | |
| rooted | 6 | |
| 7 letters | ||
| settled | 7 | |
| 8 letters | ||
| resolute | 8 | |
| unbroken | 8 | |
| thorough | 8 | |
| UNPOETIC | 8 | |
| terminal | 8 | |
| straight | 8 | |
| 9 letters | ||
| immutable | 9 | |
| permanent | 9 | |
| braindead | 9 | |
| unaltered | 9 | |
| UNVARYING | 9 | |
| 10 letters | ||
| UNSWERVING | 10 | |
| UNCHANGING | 10 | |
| 11 letters | ||
| unalterable | 11 | |
| UNREMITTING | 11 | |
| undeviating | 11 | |
| 12 letters | ||
| unreturnable | 12 | |
| UNCHANGEABLE | 12 | |
| straightaway | 12 | |
| 13 letters | ||
| UNINTERRUPTED | 13 | |
| unsusceptible | 13 | |
| unsalvageable | 13 | |
| 14 letters | ||
| BURNSONESBOATS | 14 | |
| unidirectional | 14 | |
| INDESTRUCTIBLE | 14 | |
| 15 letters | ||
| TAKINGTHEPLUNGE | 15 | |
| straightforward | 15 | |