| reserved(adjective, characteristic, secret, reservedness) |
| reticent(adjective, characteristic, secret, reservedness) |
| retired(adjective, characteristic, secret, reservedness) |
| scared |
| secluded(adjective, characteristic, secret, reservedness) |
| silent(adjective, characteristic, secret, reservedness) |
| subtle(adjective, characteristic, modesty, secrecy) |
| taciturn(adjective, characteristic, secret, reservedness) |
| tenebrous(adjective, characteristic, obscurity, mystery) |
| tight-lipped(adjective, characteristic, secret, reservedness) |
| tight chops(adjective, characteristic, secret, reservedness) |
| unclear(adjective, characteristic, obscurity, mystery) |
| uncommunicative(adjective, characteristic, secret, reservedness) |
| unemphatic(adjective, characteristic, modesty, secrecy) |
| unfathomable(adjective, characteristic, obscurity, mystery) |
| unforthcoming(adjective, characteristic, secret, reservedness) |
| uninformative(adjective, characteristic, obscurity, mystery) |
| unnoticeable(adjective, characteristic, modesty, secrecy) |
| unostentatious(adjective, characteristic, modesty, secrecy) |
| vague(adjective, characteristic, obscurity, mystery) |