| unapprehended(strange, new, remote, mysterious, indefinite) |
| unascertained(strange, new, remote, mysterious, indefinite) |
| unattainable(adjective, inaccessible) |
| uncelebrated(strange, new, remote, mysterious, indefinite) |
| uncharted(adjective, strange, new, remote, mysterious) |
| undiscovered(strange, new, remote, mysterious, indefinite) |
| undistinguished(strange, new, remote, indefinite, unidentified) |
| unexplained(strange, new, remote, mysterious, indefinite) |
| unexplored(experience, strange, new, remote, different) |
| unfamiliar(experience, new, distant, remote, different) |
| unheard-of(strange, new, remote, indefinite, unidentified) |
| unidentified(strange, new, remote, mysterious, indefinite) |
| unknown(adjective, obscure, experience, strange, distant) |
| unnamed(strange, indefinite, unidentified) |
| unnoted(strange, new, remote, indefinite, unidentified) |
| unperceived(strange, new, remote, mysterious, indefinite) |
| unreachable(adjective, inaccessible) |
| unrecognized(strange, new, remote, mysterious, indefinite) |
| unrenowned(strange, new, remote, mysterious, indefinite) |
| unrevealed(strange, new, remote, mysterious, indefinite) |