mellow

动词 mellow:

1. soften, make mellow
2. become more relaxed, easygoing, or genial
   同义词：melt, mellow out
3. make or grow (more) mellow

形容词 mellow:

1. unhurried and relaxed
   同义词：laid-back
2. having a full and pleasing flavor through proper aging
   同义词：mellowed
3. having attained to kindliness or gentleness through age and experience
   同义词：mellowed
4. having attained to kindliness or gentleness through age and experience
5. slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana)
   同义词：high

副词 mellow:

1. (obsolete) in a mellow manner
   同义词：mellowly

1. The orchestra had a distinctively warm and mellow sound.
   这个管弦乐队演奏的特色是声音优美柔和。
2. Age has mellowed his attitude to some things.
   他随著年龄的增加，对某些事情的看法已日趋成熟。
3. He has a mellow attitude to life.
   他对生活有种成熟的看法。
4. A few more years will mellow the wine.
   再过几年这酒就会香醇。
5. As they mature, many young radicals mellow into a more tolerant attitude towards life and society.
   随着逐渐成熟，许多年轻的激进分子对 生活和社会渐持较为宽容的态度。

mel.low

adj.（形容词）
mel.low.er,mel.low.est

Soft, sweet, juicy, and full-flavored because of ripeness:
成熟的，甘美多汁的：因成熟而柔软的、甜蜜的、多汁的、味浓的：
例句：
a mellow fruit.
软熟多汁的果实

Suggesting softness or sweetness:
柔和的，甜蜜的：使人觉得柔软与甜蜜的：
例句：
.The mellow air brought in the feel of imminent autumn.(Thomas Hardy)
.甜美芳香的空气给人以秋天将至的感觉.(托马斯·哈迪)

Rich and soft in quality:
芳醇的：质地醇厚甜软的：
例句：
a mellow sound; a mellow wine.
醇厚甜软的声音；芳醇的葡萄酒

Having the gentleness, wisdom, or tolerance often characteristic of maturity.
老练的，稳健的：具有常被作为成熟之特征的温和性情、智慧和忍耐力
Relaxed and unhurried; easygoing:
放松的，不急躁的；易相处的：
例句：
a mellow friend; a mellow conversation.
易相处的朋友；悠闲自在的谈话

Slang
【俚语】
Slightly and pleasantly intoxicated.
微醉的：因微醉而感到轻松和愉快的
Pleasantly high from a drug, especially from smoking marijuana.
飘飘然的：因食用药物，尤指因吸食大麻而感觉愉快而轻飘飘的
Moist, rich, soft, and loamy. Used of soil.
（指土壤）湿润的，富饶的，柔软的，肥沃的
v.tr.intr.（及物动词和不及物动词）
mel.lowed,mel.low.ing,mel.lows
To make or become mellow.
使甘美多汁，变熟

<常用词组>mellow out 【俚语】
To become genial and pleasant; relax:
变得和蔼愉快；放松：
例句：
.The cowboy mellowed out when they read him a sweet letter from his wife.(Bobbie Ann Mason)
.当他们给他念了他妻子的来信后，这个牛仔变得乐陶陶的.(鲍比·安·梅森)

来源：
Middle English melwe
中古英语 melwe
perhaps from melowe
可能源自 melowe
variant of mele [ground grain, meal] * see meal
mele的变体 [谷物，饭] *参见 meal

【引伸】
mel.lowly
adv.（副词）
mel.lowness
n.（名词）