The antonyms for the phrase "calls together" can vary based on context, but generally involve dispersing or separating groups of people or things. Some examples might include: sending away, breaking up, disbanding, scattering, or isolating. For instance, if someone were to "call together" a group of friends for a party, the opposite action might involve cancelling the event, choosing not to invite anyone, or discouraging people from attending. Similarly, if a teacher were to "call together" a class for a lecture, the antonym might involve cancelling the class, dismissing students early, or conducting lessons remotely. Ultimately, the opposite of "calling together" involves undoing or preventing the act of bringing people or things together.