noun
winter depression; winter blues
Refers to seasonal affective disorder (SAD) with onset in winter; a common term in everyday and medical contexts.
冬季うつの症状には、気分の落ち込みや過眠がある。
Symptoms of winter depression include low mood and oversleeping.
日照時間が短くなると冬季うつになりやすい。
When daylight hours become shorter, one is prone to winter blues.
Formal medical term for seasonal affective disorder; 冬季うつ is the common, specific term for the winter-pattern type.
Compound of 冬季 (winter) and うつ (depression), a straightforward modern coinage for seasonal affective disorder in winter.