The term "more undifferentiated" refers to something that lacks specificity or distinct qualities. The opposite of this term is "more differentiated," which means to become specialized or make clear distinctions. Something that is more differentiated has unique characteristics that set it apart from other things. Another antonym for more undifferentiated could be "distinct," which means clearly defined, separate, and easily recognizable. The opposite of undifferentiated can also be "specific," indicating a clear and definite nature. Words such as "detailed," "precise," and "specific" can also serve as antonyms for more undifferentiated, as they convey a high level of clarity and detail in describing a thing or concept.