soft, sweet, and full-flavored from ripeness, as fruit.

well-matured, as wines.

soft and rich, as sound, tones, color, or light.

made gentle and compassionate by age or maturity; softened.

friable or loamy, as soil.

mildly and pleasantly intoxicated or high.

pleasantly agreeable; free from tension, discord, etc.

a mellow neighborhood.

affably relaxed; easygoing; genial

a mellow teacher who is very popular with her students.

to make or become mellow.

Slang . a state, atmosphere, or mood of ease and gentle relaxation. ?

mellow out, Slang .

to become detached from worry, strife, stress, etc.; relax

After final exams let's go down to the beach and mellow out.

to make more relaxed, agreeable, workable, etc.; soften or smooth

Chopin really mellows me out when I'm feeling tense.

adjective

hard , immature , sour , tart , unripe

adjective

aged , cultured , cured , delicate , developed , dulcet , flavorful , full , full-flavored , fully developed , juicy , matured , mellifluent , mellifluous , melodious , perfect , perfected , rich , ripened , rounded , sapid , savory , seasoned , smooth , soft , soothing , sweet , tuneful , ripe , orotund , plangent , resounding , ringing , rotund , round , sonorous , vibrant , classic , resonant

verb

age , arrive , develop , grow , grow up , improve , maturate , milden , mollify , perfect , ripe , season , settle down , soften , sweeten , ripen , aged , developed , juicy , mature , matured , relaxed , rich , softened , soothing , tender , unhurried