turncoat

As an adjective rat

is .

As a noun turncoat is

a traitor; one who turns against a previous affiliation or allegiance.

As a verb backstab

is to attack someone (especially verbally) unfairly in a deceitful, underhand, or treacherous manner, especially when they're not present in the place or situation that it happens (as if stabbing them in the back) see backbite.

As a noun turncoat is

a traitor; one who turns against a previous affiliation or allegiance.

As nouns the difference between opportunist and turncoat

is that opportunist is opportunist while turncoat is a traitor; one who turns against a previous affiliation or allegiance.

As nouns the difference between carpetbagger and turncoat

is that carpetbagger is (politics|history|chiefly|us) an immigrant from the northern to the southern states after the american civil war of 1861–5, especially one who went south to gain political influence; hence, someone intervening in the politics of an area with which they are thought to have no real connection while turncoat is a traitor; one who turns against a previous affiliation or allegiance.

As nouns the difference between apostasy and turncoat

is that apostasy is the renunciation of a belief or set of beliefs while turncoat is a traitor; one who turns against a previous affiliation or allegiance.

As a noun turncoat is

a traitor; one who turns against a previous affiliation or allegiance.

As nouns the difference between turncoat and mutineer

is that turncoat is a traitor; one who turns against a previous affiliation or allegiance while mutineer is someone who participates in mutiny.

As nouns the difference between taxonomy and turncoat

is that taxonomy is the science or the technique used to make a classification while turncoat is a traitor; one who turns against a previous affiliation or allegiance.

As an adjective heretic

is heretical.

As a noun turncoat is

a traitor; one who turns against a previous affiliation or allegiance.

As nouns the difference between turncoat and turncloak

is that turncoat is a traitor; one who turns against a previous affiliation or allegiance while turncloak is turncoat.