| privately |
| reserved(mysterious, private, reticent, taciturn, uncommunicative) |
| silent(mysterious, private, reticent, taciturn, uncommunicative) |
| tight-lipped(mysterious, private, reticent, taciturn, uncommunicative) |
| undercover(mysterious, private, reticent, taciturn, covert) |
| unforthcoming(mysterious, private, reticent, taciturn, covert) |
| withdrawn(mysterious, private, reticent, taciturn, covert) |
| zipped(mysterious, private, reticent, taciturn, covert) |
| QT(unknowing, hermetical, unbriefed) |
| apprenticed(unknowing, hermetical, unbriefed) |
| backstage(unknowing, hermetical, unbriefed) |
| behind the curtain(expression, idiom, unknowing, hermetical, unbriefed) |
| behind the scenes(expression, idiom, unknowing, hermetical, unbriefed) |
| birdbrained(unknowing, hermetical, unbriefed) |
| blind to(expression, unknowing, hermetical, unbriefed) |
| caught napping(expression, unknowing, hermetical, unbriefed) |
| cautious(mysterious, private, reticent) |
| confidentially |
| cretinous(unknowing, hermetical, unbriefed) |
| guarded(mysterious, private, reticent) |