Decoloring, also known as color removal, is the process of eliminating color from a substance. The opposite of decoloring is coloring, the process of adding color to a substance. Another antonym for decoloring is tinting, which refers to the process of giving a slight color to a substance. In contrast, bleaching is a process similar to decoloring, but it involves lightening the color of a substance. Dyeing, on the other hand, is the process of adding a specific color to a substance. Finally, staining is the process of coloring a material by applying an agent that gives it a different hue or tone. These antonyms illustrate the various ways in which color can be altered in substances.