| acute(sharp, smart, intelligent, cunning, clever) |
| amoral(corrupt, dishonest, immoral, fickle, untrustworthy) |
| arch(adjective, mean, smooth, cunning, knowing) |
| bad(wrong, immoral, unprincipled) |
| base |
| buttoned up(verb, adjective, phrasal verb, secret, concealment) |
| circuitous(ambiguous, rambling, incidental, tortuous) |
| closet(noun, adjective, hidden, clandestine, underground) |
| diplomatic |
| dissembling(adjective, mean, smooth, cunning, knowing) |
| doubtful |
| fake(adjective, bad, wrong, false, dishonest) |
| falsehearted(fickle, untrustworthy, unprincipled, dirty-dealing) |
| felonious |
| immoral(wrong, corrupt, dishonest, unprincipled) |
| improper(adjective, wrong, corrupt, dishonest, immoral) |
| incognito(secret, hidden, spy, clandestine, underground) |
| ingenious(adjective, mean, smooth, sharp, smart) |
| intriguing(adjective, mean, smooth, cunning, knowing) |
| knowing(sharp, smart, intelligent, cunning, clever) |