Inter-pose, meaning to interrupt or mediate, has a few possible antonyms, depending on the context in which it is used. One antonym is "facilitate", meaning to make a process easier or more efficient. Another antonym is "ignore", meaning to pay no attention to or bypass a situation altogether. A third possible antonym is "avoid", meaning to stay clear of or steer around a situation. All of these antonyms provide alternative actions or attitudes to interposing, whether it be by actively helping or by deliberately choosing not to interfere. Ultimately, the choice of antonym depends on the desired outcome and the situation at hand.