Antonyms for the term "bonding together" would essentially refer to situations or actions that cause separation, division or disunity among people or things. Words that directly stand as antonyms include "division," "separation," "dissolution," "parting," "breaking" and "scatter."
Other antonyms include "isolation," "detachment," "estrangement," "alienation," "estrangement," "disgrace" and "disagreement." In some contexts, antonyms of bonding together could mean "competing against each other," "clashing," "challenging" and "opposing" each other. Clearly, these words suggest a lack of unity, which can lead to dissatisfaction, stress, and negative outcomes.