| Solution | Length | |
|---|---|---|
| 4 letters | ||
| ever | 4 | |
| roma | 4 | |
| 5 letters | ||
| flame | 5 | |
| onend | 5 | |
| 6 letters | ||
| eonian | 6 | |
| sacred | 6 | |
| steady | 6 | |
| untold | 6 | |
| 7 letters | ||
| forever | 7 | |
| agelong | 7 | |
| radiant | 7 | |
| ageless | 7 | |
| supreme | 7 | |
| undying | 7 | |
| aeonian | 7 | |
| endless | 7 | |
| 8 letters | ||
| heavenly | 8 | |
| evermore | 8 | |
| constant | 8 | |
| TERMLESS | 8 | |
| timeless | 8 | |
| immortal | 8 | |
| enduring | 8 | |
| infinite | 8 | |
| unending | 8 | |
| 9 letters | ||
| unplumbed | 9 | |
| ceaseless | 9 | |
| unceasing | 9 | |
| perpetual | 9 | |
| unbounded | 9 | |
| UNDEFINED | 9 | |
| universal | 9 | |
| unlimited | 9 | |
| deathless | 9 | |
| permanent | 9 | |
| sovereign | 9 | |
| 10 letters | ||
| FORALLTIME | 10 | |
| unmeasured | 10 | |
| ubiquitous | 10 | |
| UNCHANGING | 10 | |
| everliving | 10 | |
| UNNUMBERED | 10 | |
| 11 letters | ||
| PERPETUALLY | 11 | |
| longlasting | 11 | |
| neverending | 11 | |
| everlasting | 11 | |
| UNREMITTING | 11 | |
| never-dying | 11 | |
| FOREVERMORE | 11 | |
| 12 letters | ||
| imperishable | 12 | |
| TRANSCENDENT | 12 | |
| interminable | 12 | |
| unfathomable | 12 | |
| 13 letters | ||
| UNINTERRUPTED | 13 | |
| INCORRUPTIBLE | 13 | |
| 15 letters | ||
| uncircumscribed | 15 | |