Azureous is a beautiful shade of blue that is often associated with the sky and the ocean. Synonyms for azureous include cerulean, sky-blue, powder blue, baby blue, and turquoise. The word cerulean is commonly used to describe the clear, blue color of the sky while sky-blue refers to the color of a clear day sky. Powder blue is a paler shade of blue, often used to describe baby clothing or bedding. Baby blue is a lighter shade of azureous, reminiscent of the color of a newborn baby's eyes. Lastly, turquoise is a greener shade of blue that is typically associated with gemstone. All in all, each of these synonyms is used to describe various shades of the beautiful color azureous.