Definition of: mellow

(mel′ō) adjective
1. Soft by reason of ripeness; well–matured; not bitter or acid: mellow fruit; mellow wine.
2. Of a rich or delicate quality: mellow tints; mellow tones.
3. Companionable; jolly.
4. Made jovial by liquor.
5. Soft and friable, as soil. See synonyms under RIPE.
—v.t. & v.i. To make or become mellow; ripen; soften. [ME melwe,? <OE melu meal. Akin to Flemish meluw soft, tender.]
—mel′low·ly adverb
—mel′low·ness noun