Deepsixing, which means to discard or get rid of something, can have several antonyms depending on the context. If we consider keeping something instead of getting rid of it, the antonyms could be preserve, retain, or save. Conversely, if we consider confiding or entrusting something, the antonyms could be expose or betray. If we consider neglecting or ignoring something, the antonyms could be prioritize or attend to. If we consider promoting or supporting something, the antonyms could be undermine or attack. Therefore, the antonyms for deepsixing can vary depending on the intended action towards the subject in question.