| unidentified(adjective, remote, unknown, indefinite) |
| unrecognized(adjective, strange, remote, disguise) |
| X(strange, remote, unknown, undisclosed) |
| desolate(strange, remote, indefinite, unidentified) |
| exotic(strange, remote, indefinite, unidentified) |
| far(strange, remote, indefinite, unidentified) |
| far-off(strange, remote, indefinite, unidentified) |
| faraway(strange, remote, indefinite, unidentified) |
| foreign(adjective, strange, remote, indefinite) |
| little known(expression, strange, remote, indefinite) |
| remote(strange, indefinite, unidentified) |
| so-and-so(strange, remote, indefinite, unidentified) |
| strange(adjective, remote, indefinite, clandestine) |
| such-and-such(strange, remote, indefinite, unidentified) |
| unapprehended(strange, remote, indefinite, unidentified) |
| unascertained(strange, remote, indefinite, unidentified) |
| uncelebrated(strange, remote, unknown, indefinite) |
| uncharted(strange, remote, indefinite, unidentified) |
| undiscovered(strange, remote, indefinite, unidentified) |
| undistinguished(strange, remote, unknown, indefinite) |