| Solution | Length | |
|---|---|---|
| 4 letters | ||
| sole | 4 | |
| solo | 4 | |
| 5 letters | ||
| queer | 5 | |
| 6 letters | ||
| unique | 6 | |
| single | 6 | |
| 7 letters | ||
| primary | 7 | |
| 8 letters | ||
| singular | 8 | |
| solitary | 8 | |
| 9 letters | ||
| UNRIVALED | 9 | |
| unmatched | 9 | |
| wonderful | 9 | |
| UNEQUALED | 9 | |
| 10 letters | ||
| PRODIGIOUS | 10 | |
| unimitated | 10 | |
| unbeatable | 10 | |
| unexcelled | 10 | |
| STUPEFYING | 10 | |
| remarkable | 10 | |
| stupendous | 10 | |
| prototypal | 10 | |
| 11 letters | ||
| sui generis | 11 | |
| UNSURPASSED | 11 | |
| UNSPEAKABLE | 11 | |
| 12 letters | ||
| unparalleled | 12 | |
| unrepeatable | 12 | |
| 13 letters | ||
| unprecedented | 13 | |
| 14 letters | ||
| second to none | 14 | |
| UNAPPROACHABLE | 14 | |