(especially of a sound, flavour, or colour) pleasantly smooth or soft; free from harshness
she was hypnotized by the mellow tone of his voice
slow cooking gives the dish a sweet, mellow flavour
(of a person's character) tempered by maturity or experience
a more mellow personality
(of earth) rich and loamy
to most farmers, soil has good tilth when it is mellow and granular and crumbles easily in the hand