| Solution | Length | |
|---|---|---|
| 4 letters | ||
| neat | 4 | |
| pure | 4 | |
| 5 letters | ||
| sheer | 5 | |
| plain | 5 | |
| clear | 5 | |
| solid | 5 | |
| 6 letters | ||
| purple | 6 | |
| strong | 6 | |
| simple | 6 | |
| single | 6 | |
| 7 letters | ||
| primary | 7 | |
| 8 letters | ||
| unflawed | 8 | |
| purified | 8 | |
| thorough | 8 | |
| straight | 8 | |
| spotless | 8 | |
| 9 letters | ||
| UNTAINTED | 9 | |
| UNALLOYED | 9 | |
| stainless | 9 | |
| unmingled | 9 | |
| UNSPOTTED | 9 | |
| undiluted | 9 | |
| 10 letters | ||
| pronounced | 10 | |
| 11 letters | ||
| UNBLEMISHED | 11 | |
| unmitigated | 11 | |
| uncorrupted | 11 | |
| UNQUALIFIED | 11 | |
| UNFORTIFIED | 11 | |
| 13 letters | ||
| unadulterated | 13 | |
| 14 letters | ||
| UNCONTAMINATED | 14 | |
| 15 letters | ||
| UNSOPHISTICATED | 15 | |