Soft, especially from ripeness; easily yielding to pressure: as, a mellow peach.Soft and friable, as earth; loamy.Soft, rich, or delicate to the touch, eye, ear, palate, etc., as color, sound, flavor, and the like.Having the character or appearance of maturity; showing ripeness; of ripe age or quality; perfected; matured.Softened or matured by length of years; toned down by the lapse of time; kindly disposed; good-humored; genial; jovial.Rendered good-humored or genial by liquor; somewhat under the influence of liquor; half-tipsy.Of sounds, soft and rich; characterized by many and well-balanced overtones.To ripen; bring to maturity; soften by ripeness or age; give richness, flavor, or delicacy to.To soften; pulverize; make friable: as, earth is mellowed by frost.To soften in character; render more perfect or more agreeable; tone or smooth down; mature; improve.To become soft; be ripened, matured, or brought to perfection.To soften in character; become toned down.