The phrase "left holding the bag" refers to a situation where someone is left to deal with the consequences or responsibilities of someone else's actions. Antonyms for this phrase could include "supported," "backed up," or "stood by." In these situations, someone is there to help or share the burden, rather than leaving the individual to handle it alone. Other antonyms could include "fulfilled," "accomplished," or "succeeded," meaning that the individual was able to complete a task or achieve a goal without being abandoned or left to deal with unexpected complications. Ultimately, the opposite of being "left holding the bag" is having a reliable support system and successfully navigating challenges.