| unexplored(adjective, strange, remote, mysterious) |
| uncharted(adjective, strange, remote, mysterious) |
| unheard-of(adjective, obscure, strange, remote) |
| unfamiliar(adjective, obscure, strange, remote) |
| strange(adjective, remote, mysterious, indefinite) |
| remote(adjective, strange, mysterious, indefinite) |
| unexplained(adjective, strange, remote, mysterious) |
| unidentified(adjective, strange, remote, mysterious) |
| unrevealed(strange, remote, mysterious, indefinite) |
| mysterious(strange, remote, indefinite, unidentified) |
| unperceived(adjective, strange, remote, mysterious) |
| hidden(strange, remote, mysterious, indefinite) |
| nameless(adjective, obscure, strange, remote) |
| secret(strange, remote, mysterious, indefinite) |
| unapprehended(strange, remote, mysterious, indefinite) |
| unascertained(strange, remote, mysterious, indefinite) |
| alien(strange, remote, mysterious, private) |
| concealed(strange, remote, mysterious, hidden) |
| desolate(strange, remote, mysterious, indefinite) |
| distant(strange, remote, mysterious, indefinite) |