polite and indirect in speech or expression; euphemistic

suave, mellow, or pleasing to the ear (of voice or music)

sweet-tempered and gentle in disposition or manner

to tactfully decline or turn down a request or offer in a polite and graceful manner

graceful and subdued (style)

speaking in a mild, indirect, or diplomatic way to avoid giving offense

poignantly sad and moving; sweet and piteous in tone or expression

(especially of poetry or music) melancholy; sad and moving

to politely or tactfully refuse an invitation or request

Clear and soft (usually referring to a voice or music).

sweet, soft, or lovely, especially in reference to sounds or voices

mild and harmonious

a euphemism or tactful expression for something unpleasant (such as death)