| Solution | Length | |
|---|---|---|
| 4 letters | ||
| will | 4 | |
| 5 letters | ||
| drive | 5 | |
| blast | 5 | |
| 6 letters | ||
| fixity | 6 | |
| 7 letters | ||
| resolve | 7 | |
| purpose | 7 | |
| stamina | 7 | |
| 8 letters | ||
| vitality | 8 | |
| strength | 8 | |
| 9 letters | ||
| thickness | 9 | |
| diligence | 9 | |
| stiffness | 9 | |
| viscosity | 9 | |
| stability | 9 | |
| TIGHTNESS | 9 | |
| TOUGHNESS | 9 | |
| retention | 9 | |
| sincerity | 9 | |
| 10 letters | ||
| doggedness | 10 | |
| prehension | 10 | |
| THICKENING | 10 | |
| REPRESSION | 10 | |
| resolution | 10 | |
| resistance | 10 | |
| 11 letters | ||
| PERSISTENCE | 11 | |
| firmresolve | 11 | |
| seriousness | 11 | |
| SUPPRESSION | 11 | |
| PERTINACITY | 11 | |
| 12 letters | ||
| cohesiveness | 12 | |
| stubbornness | 12 | |
| PRESERVATION | 12 | |
| perseverence | 12 | |
| 13 letters | ||
| staying-power | 13 | |
| PREOCCUPATION | 13 | |
| retentiveness | 13 | |
| 14 letters | ||
| relentlessness | 14 | |