The phrase "more wefted" can be interpreted in a few different ways. If we are talking about a fabric, it might refer to the amount of weft (horizontal) threads that have been woven into it. Synonyms for this could include denser, thicker, or heavier. If we are talking about an idea or argument that has been developed further, synonyms could be more fleshed out, expanded, or elaborated. Alternatively, if we are talking about a physical object that has had more material added to it, synonyms could be bulkier or more substantial. It all depends on the context in which "more wefted" is being used!