The antonyms for the term "buddying up" can include distancing, separating, alienating, or estranging. These terms imply a sense of isolation or a lack of camaraderie between individuals. When people choose to distance themselves from each other, they are consciously making an effort to avoid closeness or familiarity. Separating suggests a physical or emotional gap between two people or groups. Alienating and estranging are both negative antonyms that suggest severe emotional or psychological disconnection, often with an intent to harm or hurt. In contrast, the term "buddying up" implies a positive and friendly relationship, with a sense of companionship and mutual support.