Antonyms for the phrase "teaming up" include "dissociating," "separating," "dividing," "isolating," and "disconnecting." These words signify that people or groups are going their separate ways instead of joining together. Instead of embracing collaboration, they might want to work independently, or they might have different objectives that don't align. In some cases, people might disconnect from each other because they don't get along or have conflicting opinions. While "teaming up" signifies unity and strength, these antonyms indicate separation and weakness. Nonetheless, sometimes it's necessary to split up in order to achieve success, and working independently can be just as effective as working as a team.