0 a person who changes from one opinion to an opposite one in a way that shows they are not loyal to people who share the original opinion -- 变节者，叛徒
And a nation got ta be able to deal with traitors and cutthroats and turncoats.
American rebel frontiersmen considered him a renegade and turncoat.
However, to see so many turncoats and hypocrites in one place is astonishing.
Garrick regroups, and is aided by a turncoat mercenary general who helps carry the day.
In the face of fear and insecurity, the prime motive for a turncoat to draw away from former allegiances may be mere survival.
Although criticized by many as a turncoat, he was an able administrator.
I do not think that they would like to have a turncoat "imposed" on them.
A nation has to be able to deal with traitors and cutthroats and turncoats.
