| Solution | Length | |
|---|---|---|
| 4 letters | ||
| true | 4 | |
| ided | 4 | |
| real | 4 | |
| 5 letters | ||
| truth | 5 | |
| shown | 5 | |
| valid | 5 | |
| 6 letters | ||
| proven | 6 | |
| proved | 6 | |
| tested | 6 | |
| 7 letters | ||
| settled | 7 | |
| 8 letters | ||
| reliable | 8 | |
| undenied | 8 | |
| truthful | 8 | |
| madesure | 8 | |
| 9 letters | ||
| UNDOUBTED | 9 | |
| empirical | 9 | |
| veritable | 9 | |
| veracious | 9 | |
| unrefuted | 9 | |
| confirmed | 9 | |
| validated | 9 | |
| 10 letters | ||
| unconfuted | 10 | |
| unmistaken | 10 | |
| 11 letters | ||
| SURE ENOUGH | 11 | |
| 13 letters | ||
| substantiated | 13 | |
| 14 letters | ||
| tried-and-true | 14 | |
| UNQUESTIONABLE | 14 | |