The word "fine-spun" generally refers to something that is delicate and intricately woven or crafted. The antonyms for fine-spun are rough, coarse, unrefined, and unsophisticated. These words suggest that the thing in question lacks precision and attention to detail. A rough fabric, for example, might be overly bulky or unevenly textured, while a coarse conversation might lack tact and nuance. Similarly, an unrefined work of art may lack the finesse and dexterity of a fine-spun piece, while an unsophisticated argument might be simplistic and lacking in complexity. Overall, the antonyms for fine-spun imply a lack of refinement, sophistication, or precision.