Antonyms for the word "more fine-grained" can include descriptors such as broad, general, coarse, rough, or simple. These words relate to a lack of detail and intricacy, as opposed to the nuanced nature of something that is fine-grained. When referring to information or data, concepts such as high-level or general can also be used to describe the opposite of something that is fine-grained. Understanding the antonyms of "more fine-grained" can be helpful when trying to convey a sense of simplicity or breadth in a particular topic or subject matter.