Betrayers are those who betray the trust of others, which can have serious consequences for their relationships and reputations. Synonyms for betrayers include traitors, turncoats, renegades, double-crossers, deceivers, backstabbers, spies, informants and collaborators. Each of these words describes someone who has willingly committed an act of betrayal or deception against someone else. The context in which these words are used can vary depending on the situation, but all of them suggest that the person in question has violated a code of trust and loyalty. When searching for alternative words to betray, these synonyms can help convey the level of disloyalty and potential danger of the situation at hand.