| Rating | Solver | Clue |
|---|---|---|
| UNHEARDOF | Unprecedented | |
| UNHEARD-OF | New; unprecedented; unparalleled. | |
| UNEXAMPLED | Having no example or similar case; being without precedent; unprecedented; unparalleled. | |
| UN- | ...able, unconscionable, undeniable, unspeakable, unprecedented, unruly, and the like; or inasmuch as they are used in a different sense from the u... |