| 5 clues |
|---|
| Quixotic quest |
| It's out of reach |
| Unattainable aspiration |
| The "Man of La Mancha" had one |
| Man of La Mancha" tune (with "The") |
| Admissionimpossible |
| Almostimpossible |
| Fissionimpossible |
| Impossible |
| Impossibledream |
| Impossibleformeto |
| Impossiblytough |
| Missimpossible |
| Missionimpossible |
| Seemsimpossible |
| Thatsimpossible |
| Theimpossible |