| Rating | Solver | Clue |
|---|---|---|
| INACCESSIBLE | Unattainable | |
| UNREACHABLE | Unattainable | |
| IMPOSSIBLE | Not possible; incapable of being done, of existing, etc.; unattainable in the nature of things, or by means at command; insuperably difficult u... | |
| MYSTICISM | ...red a knowledge of God and of spiritual things unattainable by the natural intellect, and such as can not be analyzed or explained. ... |