| Solution | Length | |
|---|---|---|
| 4 letters | ||
| tart | 4 | |
| 5 letters | ||
| close | 5 | |
| tight | 5 | |
| laxer | 5 | |
| rigid | 5 | |
| rough | 5 | |
| tough | 5 | |
| sharp | 5 | |
| stern | 5 | |
| harsh | 5 | |
| 6 letters | ||
| strict | 6 | |
| strong | 6 | |
| severe | 6 | |
| rugged | 6 | |
| 7 letters | ||
| precise | 7 | |
| violent | 7 | |
| spartan | 7 | |
| 8 letters | ||
| strident | 8 | |
| rigorous | 8 | |
| stinging | 8 | |
| virulent | 8 | |
| stabbing | 8 | |
| exacting | 8 | |
| vehement | 8 | |
| scathing | 8 | |
| 9 letters | ||
| unsparing | 9 | |
| trenchant | 9 | |
| vitriolic | 9 | |
| SWINGEING | 9 | |
| 10 letters | ||
| relentless | 10 | |
| 11 letters | ||
| restrictive | 11 | |