The word hangup refers to an obstacle or barrier that prevents someone from progressing or moving forward. The opposite of hangup is a breakthrough, which refers to overcoming a difficult or challenging situation. Another antonym for hangup is freedom, which means having the ability to make choices without any limitations or restrictions. The opposite of hangup can also be liberation, referring to the release from different kinds of constraints. Finally, the antonym for hangup can also be solution, which refers to finding a way to resolve or fix a problem that was causing a hold-up.