m e l · l o w
(especially of a sound, flavour, or colour) pleasantly smooth or soft; free from harshness.
synonyms: dulcet, sweetsounding, tuneful, lyric, melodious
(of a person's character) tempered by maturity or experience. synonyms: easygoing, warm, goodnatured, gracious, gentle, kind-hearted
make or become mellow.
synonyms: relax, calm, settle, mature, improve