The antonyms for the word "popping off" can vary depending on the context in which it is used. In a casual setting, antonyms for "popping off" could include staying calm, keeping quiet, or remaining composed. In a more serious context, antonyms might include remaining respectful, showing restraint, or avoiding conflict. Similarly, in a workplace environment, antonyms for "popping off" could include being diplomatic, staying professional, or practicing patience. Ultimately, the antonyms for "popping off" all relate to maintaining a sense of calm and control in situations where emotions may run high, and being able to express oneself in a manner that is appropriate and constructive.