The word "colorants" refers to substances that add color to a material or product. Some common antonyms for this word include "bleach," which removes color, "whitener," which lightens the color of a material, and "dye remover," which eliminates color from fabrics. Other antonyms for "colorants" include "colorless," "clear," "transparent," and "unpigmented." These terms are often used to describe products or materials that do not have any added color. While "colorants" are often used to enhance the appearance of objects, their antonyms are useful for creating a more subtle, natural, or minimalist look.