sense of isolation; feeling of loneliness
Refers to the subjective feeling of being alone or cut off from others, even when physically surrounded by people.
都会に住んでいても、孤独感を覚えることがある。
Even living in the city, I sometimes feel a sense of loneliness.
He has few friends and suffers from a strong feeling of isolation.
Compound of 孤独 (kodoku, 'solitude, loneliness') and 感 (kan, 'feeling, sense').