The word "co-loring" refers to adding color to something. The opposite of coloring would be removing color or making something grayscale. Other antonyms for coloring could include whitewashing, fading, or blanching. These terms are often used in the context of art or design, where color and texture are essential elements. In literature, the antonym of coloring could be considered plain or undecorated, as opposed to embellished or enriched with colorful details. Understanding antonyms can help writers and artists identify the range of possibilities available to them, from bright and vivid colors to subtle nuances and minimalistic styles.