| vague |
| X(strange, new, remote, mysterious, indefinite) |
| able |
| alien(strange, new, remote, mysterious, indefinite) |
| anonymous(strange, indefinite, unidentified) |
| concealed(strange, new, remote, mysterious, indefinite) |
| desolate(strange, new, remote, mysterious, indefinite) |
| distant(strange, new, remote, mysterious, indefinite) |
| exotic(strange, new, remote, mysterious, indefinite) |
| far(strange, new, remote, mysterious, indefinite) |
| far-off(strange, new, remote, mysterious, indefinite) |
| faraway(strange, new, remote, mysterious, indefinite) |
| foreign(strange, new, remote, mysterious, indefinite) |
| hidden(strange, new, remote, mysterious, indefinite) |
| impenetrable(adjective, strange, inexplicable) |
| incalculable |
| incog(strange, new, remote, mysterious, indefinite) |
| incognito(strange, new, remote, indefinite, unidentified) |
| invisible |
| little known(expression, strange, new, remote, mysterious) |