Available Definitions:
1) superl. - Soft or tender by reason of ripeness; having a tender pulp; as, a mellow apple.
2) superl. - Easily worked or penetrated; not hard or rigid; as, a mellow soil.
3) superl. - Not coarse, rough, or harsh; subdued; soft; rich; delicate; -- said of sound, color, flavor, style, etc.
4) superl. - Well matured; softened by years; genial; jovial.
5) superl. - Warmed by liquor; slightly intoxicated.
6) v. t. - To make mellow.
7) v. i. - To become mellow; as, ripe fruit soon mellows.