The term "more subfuse" is not commonly used in the English language, making it difficult to identify antonyms for it. However, the word "subfuse" is a rare term that means to fuse slightly or weakly, so potential antonyms could include "completely fuse," "strongly fuse," or "fully fuse." Alternatively, antonyms for "more" could include "less," "reduced," or "limited," which would impact the degree or quantity of the subfusing. In either case, it is important to consider context and usage to determine the most appropriate antonym in any given situation.