a feeling of weariness and dissatisfaction
ennui - dissatisfaction
‘Ennui’ is essentially a combination of tiredness and boredom, usually brought on by an absence of mental stimulation. While this feeling is most commonly caused by a lack of occupation, a clear goal in your life, or being stuck in a humdrum existence where nothing seems to change from day-to-day, it can also be influenced by the weather.
Bogged down in a dull, monotonous life, Anna couldn’t help but feel a strong sense of ennui.
When the cold and dark of winter rolls around, it always brings with it a feeling of ennui.
You need to stop focusing on yourself and dedicate your time to helping others instead. That will cure your ennui!