An agreeable sound is one that is pleasing and enjoyable to listen to. There are many synonyms for the word "agreeable sound" that can be used to describe different types of sounds. For example, a melodic sound is one that has a pleasant, musical tone. A soothing sound is one that is calming and relaxing, while a cheerful sound is uplifting and positive. A harmonious sound is one that is balanced and pleasing to the ear, while a euphonious sound is one that is beautiful and pleasingly melodic. Other synonyms for agreeable sound include sweet, pleasant, musical, harmonious, and mellifluous. Whatever the type of sound, an agreeable sound is one that is sure to be enjoyed by all who hear it.