Dapple-grayness is a unique word that describes the color of a horse's coat, which is a mixture of white and gray patches. If you are looking for synonyms to this word, some of the options include mottled grayness, speckled gray, and pepper and salt-colored. Other synonymous words that can be used to describe a horse with a dapple-gray coat are stippled gray, flecked gray, and variegated gray. The word "dapple" itself can also be replaced with words like spotted, patched, or mottled, making the sentence more descriptive. Regardless of the word you choose, each one paints a vivid picture of a horse with a beautiful and unique coat.