In the sentence "The doctors remained somewhat hopeful," what role does "somewhat" play?

In the sentence "The doctors remained somewhat hopeful," the word "somewhat" functions as an adverb. It modifies the adjective "hopeful," indicating the extent or degree of hopefulness that the doctors experienced. Adverbs often provide context regarding how something is done, when, where, or to what extent, and in this case, "somewhat" specifies that their hope was not absolute but rather moderate. This use enhances the reader's understanding of the doctors' feelings by qualifying the adjective, rather than standing alone as a noun, verb, or adjective itself.