The word "apostate" refers to someone who has abandoned their religious or political beliefs. There are various synonyms for this word, including "renegade," "traitor," "defector," "turncoat," and "backslider." The term "renegade" emphasizes the act of rebellion against authority, while "traitor" underscores the betrayal of loyalty. "Defector" specifically refers to those who defect from their country or political group, while "turncoat" points to someone who has switched sides. "Backslider" implies a lack of commitment to a chosen path or ideology. In essence, these synonyms describe someone who has turned their back on their previous beliefs, and whose actions may result in negative consequences.