| mysterious(adjective, quiet, intriguing) |
| mystic(adjective, obscure, unknown, unrevealed) |
| obscure(adjective, unknown, unrevealed) |
| occult(adjective, obscure, unknown, unrevealed) |
| on the QT(expression, adjective, idiom, obscure, unknown) |
| on the quiet(expression, adjective, idiom, hidden, fraudulent) |
| out-of-the-way(adjective, obscure, unknown, unrevealed) |
| overdramatic(adjective, behavior, melodramatic, theatrical, overemotional) |
| overemotional(adjective, behavior, melodramatic, theatrical, blood-and-thunder) |
| private(adjective, hidden, fraudulent) |
| quiet(adjective, intriguing) |
| recondite(adjective, obscure, unknown, unrevealed) |
| restricted(adjective, discreet) |
| reticent(adjective, obscure, unknown, unrevealed) |
| retired(adjective, obscure, unknown, unrevealed) |
| secluded(adjective, obscure, unknown, unrevealed) |
| secret(adjective, quiet, intriguing) |
| secretive(adjective, restricted, discreet) |
| sensational(adjective, behavior, theatrical) |
| shrouded(adjective, obscure, unknown, unrevealed) |