ゆううつ憂鬱yuuutsuゆうyuuうつutsu
1.

A state of emotional heaviness or a feeling of being weighed down, often characterized by a lack of joy or excitement, which can arise from negative circumstances or worries.

2.

A persistent mood that impedes one’s ability to feel cheerful, often resulting in a somber demeanor or outlook, reflecting an inner sense of sadness or worry.

3.

An overall sense of gloominess that can manifest in a person's surroundings or circumstances, often described as a feeling of being in a dreary or oppressive atmosphere.

4.

An emotional condition where one's spirits are low, causing a general disinterest in daily activities, often accompanied by a sense of hopelessness or sorrow.

Example:

雨が降ると彼女は憂鬱になる。