| quixotic(supernatural, spiritual, mystical) |
| recondite(obscure, strange, unknown, clandestine, underground) |
| reticent(obscure, deep, unknown, clandestine, underground) |
| retired(obscure, deep, unknown, clandestine, underground) |
| secluded(obscure, unknown, clandestine, underground, undisclosed) |
| secretive(adjective, strange, clandestine, underground, undisclosed) |
| shrouded(obscure, unknown, clandestine, underground, undisclosed) |
| sorcerous(supernatural, spiritual, mystical) |
| sphinxlike |
| spiritual(strange, supernatural, mystical, inexplicable, unexplained) |
| stickling |
| strange(adjective, obscure, deep, unknown, clandestine) |
| subjective |
| subtle(hard, delicate, complex, tricky, complicated) |
| supernatural(spiritual, mystical) |
| symbolic |
| tangled(hard, tricky, complicated, caught, multiplex) |
| telestic(supernatural, spiritual, mystical) |
| tenebrous(obscure, uncertain, vague, unclear, indefinite) |
| thorny(hard, delicate, complex, tricky, complicated) |