The word "gray-white" is a color that combines the cool neutrality of gray with the purity of white. However, if you are looking for antonyms or opposites to this specific color, you could consider a wide range of hues that are warmer, bolder, or darker. Some antonyms for gray-white could include bright and vibrant colors such as red, yellow, or orange, or darker shades like black or navy blue. Alternatively, softer and lighter colors like beige, cream, or pastel shades could also work as opposites. Depending on your intent, the antonyms for gray-white can be endless - from bold and bright to soft and muted.