apostate

a person who has abandoned a religious faith or cause

An apostate of the Republican Party, Sheldon has yet to become affiliated with any party and dubs himself an independent.

In its message of violent global jihad, al-Qaida rails against U.S. support of Israel and what it calls apostate regimes in the Middle East.

The group urged Somali parents to let children learn how to handle weapons and fight what it calls the apostate government.

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