Blue dragon is a term often used to refer to a specific type of dragon that is predominantly blue in color. However, there are several synonyms that people can use instead of this term to add more variety to their language. Some of the best synonyms for blue dragon include azure dragon, cobalt dragon, navy dragon, sapphire dragon, and indigo dragon. Each of these synonyms is unique and brings its own distinct flavor to any piece of writing or conversation. Using these synonyms instead of sticking to one term can make your language more expressive and engaging for your audience.