Hyperfine is a term used to describe something that is extremely fine or precise. Its antonyms, therefore, would describe things that are rough, coarse, or imprecise. Some possible antonyms for hyperfine include: rough, coarse, unrefined, crude, clumsy, inaccurate, imprecise, and approximate. For example, a rough sketch is the opposite of a hyperfine drawing, and an imprecise measurement is the antonym of a hyperfine measurement. The use of antonyms is important, as it helps us to understand a word's meaning more deeply by contrasting it with its opposite. By knowing the antonyms of hyperfine, we can gain a better understanding of what hyperfine means and how it is used.