1) Apostate 2) Conspirator 3) Defector 4) Deserter 5) Rat 6) Ratter 7) Renegade 8) Traitor 9) Treor 1) Apostate 2) Deserter 3) Human behavior 4) Judas Iscariot 5) Quitter 6) Ratter 7) Recreant 8) Renegade 9) Traitor 
A turncoat is a person who shifts allegiance from one loyalty or ideal to another, betraying or deserting an original cause by switching to the opposing side or party. In political and social history, this is distinct of being a traitor, as the switch mostly takes place under the following circumstances: ==Historical context== Even in a modern his...
• (n.) One who forsakes his party or his principles; a renegade; an apostate.
a person who changes to the opposite party or faction, reverses principles, etc.; renegade.