| Solution | Length | |
|---|---|---|
| 3 letters | ||
| set | 3 | |
| 4 letters | ||
| wiry | 4 | |
| rapt | 4 | |
| ropy | 4 | |
| 5 letters | ||
| chary | 5 | |
| slimy | 5 | |
| stiff | 5 | |
| cling | 5 | |
| tough | 5 | |
| rigid | 5 | |
| tacky | 5 | |
| stout | 5 | |
| thick | 5 | |
| tight | 5 | |
| 6 letters | ||
| stable | 6 | |
| stodgy | 6 | |
| syrupy | 6 | |
| urgent | 6 | |
| sticky | 6 | |
| VISCID | 6 | |
| spunky | 6 | |
| sullen | 6 | |
| slabby | 6 | |
| sinewy | 6 | |
| dogged | 6 | |
| sturdy | 6 | |
| strong | 6 | |
| steady | 6 | |
| 7 letters | ||
| starchy | 7 | |
| unasked | 7 | |
| persist | 7 | |
| stringy | 7 | |
| serious | 7 | |
| sincere | 7 | |
| WILLFUL | 7 | |
| jealous | 7 | |
| viscous | 7 | |
| restive | 7 | |
| 8 letters | ||
| SEDULOUS | 8 | |
| vigorous | 8 | |
| powerful | 8 | |
| UNTIRING | 8 | |
| resolute | 8 | |
| spirited | 8 | |
| adhesive | 8 | |
| stalwart | 8 | |
| tireless | 8 | |
| slithery | 8 | |
| stubborn | 8 | |
| 9 letters | ||
| UNDAUNTED | 9 | |
| steadfast | 9 | |
| gunnedfor | 9 | |
| UNWEARIED | 9 | |
| strenuous | 9 | |
| thickened | 9 | |
| RETENTIVE | 9 | |
| obstinate | 9 | |
| sleepless | 9 | |
| UNFAILING | 9 | |
| resistant | 9 | |
| 10 letters | ||
| UNSWERVING | 10 | |
| UNWAVERING | 10 | |
| persistent | 10 | |
| UNFLAGGING | 10 | |
| relentless | 10 | |
| purposeful | 10 | |
| 11 letters | ||
| unfaltering | 11 | |
| stick at it | 11 | |
| preoccupied | 11 | |
| red-blooded | 11 | |
| unflinching | 11 | |
| UNREMITTING | 11 | |
| unrelenting | 11 | |
| Self-willed | 11 | |
| 12 letters | ||
| PRESERVATIVE | 12 | |
| stiff-necked | 12 | |
| wholehearted | 12 | |
| Pertinacious | 12 | |
| UNREGENERATE | 12 | |
| 13 letters | ||
| single-minded | 13 | |
| UNCONQUERABLE | 13 | |
| UNINTERRUPTED | 13 | |
| uncooperative | 13 | |
| strong willed | 13 | |