The antonyms for the word "more sharp-cut" could include "dull," "blunt," "rounded," "curved," or "smooth." These words describe the opposite of a sharp, defined edge or point. A dull blade, for example, would not be able to make clean, sharp cuts. Similarly, a curved or smooth surface would not have the same sharpness as an edge. Antonyms can be helpful in describing the opposite qualities of a word, and can provide a more nuanced understanding of the term in question.