| unexplored(adjective, strange, new, remote, mysterious) |
| undiscovered(adjective, strange, new, remote, mysterious) |
| unknown(adjective, obscure, strange, mysterious, indefinite) |
| unidentified(adjective, strange, new, remote, mysterious) |
| unfamiliar(adjective, strange, new, remote, mysterious) |
| unmapped(adjective, unknown) |
| mysterious(adjective, strange, new, remote, indefinite) |
| strange(adjective, new, remote, mysterious, indefinite) |
| chartless |
| unbeknown |
| trackless |
| uninvestigated |
| foreign(adjective, strange, new, remote, mysterious) |
| unheard-of(adjective, strange, new, remote, unknown) |
| alien(adjective, strange, new, remote, mysterious) |
| unrevealed(strange, new, remote, mysterious, indefinite) |
| virgin(characteristic, purity) |
| nameless(adjective, strange, new, remote, mysterious) |
| unexplained(adjective, strange, new, remote, mysterious) |
| concealed(adjective, strange, new, remote, mysterious) |