| Solution | Length | |
|---|---|---|
| 4 letters | ||
| ever | 4 | |
| 5 letters | ||
| rapid | 5 | |
| onend | 5 | |
| noend | 5 | |
| 6 letters | ||
| stable | 6 | |
| smooth | 6 | |
| steady | 6 | |
| 7 letters | ||
| running | 7 | |
| nonstop | 7 | |
| endless | 7 | |
| eternal | 7 | |
| uniform | 7 | |
| regular | 7 | |
| undying | 7 | |
| serried | 7 | |
| 8 letters | ||
| constant | 8 | |
| unending | 8 | |
| infinite | 8 | |
| unbroken | 8 | |
| staccato | 8 | |
| repeated | 8 | |
| timeless | 8 | |
| straight | 8 | |
| seamless | 8 | |
| 9 letters | ||
| sustained | 9 | |
| unstopped | 9 | |
| VIBRATING | 9 | |
| eternally | 9 | |
| perpetual | 9 | |
| pulsating | 9 | |
| UNVARYING | 9 | |
| incessant | 9 | |
| recurrent | 9 | |
| continual | 9 | |
| REMAINING | 9 | |
| 10 letters | ||
| allthetime | 10 | |
| CONSTANTLY | 10 | |
| repetitive | 10 | |
| unrelieved | 10 | |
| UNCHANGING | 10 | |
| continuous | 10 | |
| relentless | 10 | |
| stuttering | 10 | |
| 11 letters | ||
| everlasting | 11 | |
| UNREMITTING | 11 | |
| incessantly | 11 | |
| 12 letters | ||
| interminable | 12 | |
| 13 letters | ||
| UNINTERRUPTED | 13 | |
| 14 letters | ||
| unintermittent | 14 | |
| 16 letters | ||
| without stopping | 16 | |
| undifferentiated | 16 | |