| pretended(verb, fake, counterfeit, lying) |
| concealed(verb, fake, counterfeit, lying) |
| disguised(clandestine, underground, undisclosed) |
| dissembled(verb, close, restricted, clandestine, underground) |
| feigned(adjective, fake, counterfeit, lying) |
| affected(verb, fake, counterfeit, lying) |
| cloaked |
| masked(verb, fake, counterfeit, lying) |
| secret(adjective, clandestine, underground, undisclosed, underhand) |
| shammed(fake, counterfeit, lying) |
| simulated(adjective, fake, counterfeit, lying) |
| backdoor(close, inside, clandestine, underground, undisclosed) |
| backstairs(close, restricted, inside, clandestine, underground) |
| camouflaged(close, clandestine, underground, undisclosed, furtive) |
| classified(clandestine, underground, undisclosed) |
| close(inside, clandestine, underground, undisclosed, furtive) |
| confidential(restricted, clandestine, underground, discreet, undisclosed) |
| covert(clandestine, underground, undisclosed) |
| cryptic(close, inside, clandestine, underground, undisclosed) |
| discreet(close, restricted, inside, clandestine, underground) |