The phrase "more sewnup" can be interpreted in different ways, depending on the context. In some cases, it can refer to something that is more tightly or securely sealed. Synonyms for this could be "more closed," "more sealed," or "more airtight." It can also be used to describe something that is more certain or definitive. In this case, synonyms could include "more conclusive," "more final," or "more settled." Additionally, "more sewnup" can be a colloquial way of saying that something is more organized or well-planned. Synonyms for this might include "more put together," "more structured," or "more orderly".