| unscrupulous(adjective, mean, smooth, smart, false) |
| cagey(adjective, mean, smooth, deceitful, untrustworthy) |
| calculating(adjective, dishonest, deceitful, crafty, sneaky) |
| canny(adjective, mean, smooth, sharp, cunning) |
| elusive(adjective, mean, smooth, smart, false) |
| fly-by-night(adjective, false, dishonest, deceitful, dubious) |
| two-faced(noun, adjective, wrong, false, dishonest) |
| capricious(adjective, weak, false, uncertain, dishonest) |
| erratic(adjective, weak, uncertain, sensitive, doubtful) |
| faithless(noun, adjective, false, dishonest, cunning) |
| fickle(adjective, weak, false, uncertain, dishonest) |
| irresponsible(adjective, false, dishonest, deceitful, dubious) |
| plotting(adjective, mean, smooth, cunning, knowing) |
| shifting(adjective, changeable, fickle, volatile, wavering) |
| uncertain(adjective, weak, sensitive, irregular, doubtful) |
| undependable(adjective, false, dishonest, deceitful, dubious) |
| underhanded(adjective, honest, false, corrupt, dishonest) |
| untruthful(noun, adjective, wrong, false, corrupt) |
| volatile(adjective, weak, uncertain, doubtful, dubious) |
| astute(adjective, mean, smooth, sharp, cunning) |