n.[U]

1. 忧郁
   Rainy days give me a feeling of melancholy.

   雨天给我一种忧郁的感觉。

2. 忧思，愁思
   All at once I fell into a state of profound melancholy.

   我突然深深地陷入了忧思。

a.

1. 忧郁的，郁闷的
   a melancholy man

   一个忧郁寡欢的人

2. 令人沮丧的；可悲的
   the melancholy sound of the wind

   凄楚的风声

n.

1. deep and long-lasting sadness.
   ▸another term for melancholia (as a mental condition).
2. historical another term for black bile.

adj.