"Thrown to the wolves" is a phrase that often implies a sense of abandonment, betrayal, or sacrifice. It can be replaced with a variety of synonyms that also convey a similar sentiment. For example, the phrase "cast out" can be used to describe someone who has been rejected or expelled from a group. "Abandoned" is another alternative that suggests being left alone or deserted. "Sacrificed" implies the act of giving up someone or something for the sake of a greater purpose. "Betrayed" is a synonym that conveys a similar sense of being abandoned, but with the added nuance of being betrayed by someone trusted. Ultimately, the choice of synonym depends on the specific context and the intended tone of the message.