| privy |
| sharp |
| slick(adjective, false, cunning, misleading, sly) |
| sneaking(adjective, false, dishonest, cunning, deceitful) |
| traitorous(adjective, mean, bad, evil, base) |
| unfair(adjective, false, corrupt, dishonest, improper) |
| venal(adjective, mean, base, dishonest, immoral) |
| Machiavellian(adjective, scheming) |
| base(adjective, mean, corrupt, dishonest, immoral) |
| cheating(adjective, false, corrupt, dishonest, cunning) |
| classified(clandestine, underground, undisclosed) |
| confidential(clandestine, underground, undisclosed) |
| criminal(adjective, dishonest, shady) |
| deceiving(adjective, mean, bad, evil, false) |
| designing(adjective, false, dishonest, cunning, deceitful) |
| disloyal(adjective, mean, bad, evil, base) |
| dubious(adjective, dishonest, unpredictable, fickle, suspicious) |
| faithless(adjective, mean, bad, base, dishonest) |
| falsehearted(adjective, mean, bad, evil, base) |
| fishy(false, dishonest, deceitful, tricky, crooked) |