| sneak(noun, verb, move, person, slip) |
| traitor(noun, person, informal, rebel) |
| informer(noun, sneak, reporter, rat) |
| fink(noun, informal, sneak, informer) |
| betrayer(rebel, sneak, informant, traitor) |
| turncoat(noun, informal, rebel, impostor) |
| conspirator(impostor, renegade, turncoat, hypocrite) |
| double-crosser(rebel, sneak, impostor, renegade) |
| renegade(noun, person, informal, reprobate) |
| Judas(impostor, renegade, turncoat, hypocrite) |
| double agent(expression, turncoat, conspirator) |
| intriguer(impostor, renegade, turncoat, hypocrite) |
| quisling(impostor, renegade, turncoat, hypocrite) |
| snitch(sneak, informer, rat, impostor) |
| treasonist(impostor, renegade, turncoat, hypocrite) |
| Benedict Arnold(expression, impostor, renegade, turncoat) |
| apostate(rebel, impostor, renegade, turncoat) |
| back-stabber(impostor, renegade, turncoat, hypocrite) |
| backslider(rebel, impostor, renegade, traitor) |
| deceiver(impostor, renegade, deceiver, turncoat) |