unhappiness

The poet wrote extensively about the deep unhappiness he felt after the loss of his childhood home.

(Chinese) 诗人广泛地描写了他在失去儿时家园后感受到的深度忧愁。

Clinical studies show that long-term unemployment can lead to persistent feelings of unhappiness and low self-esteem.

(Chinese) 临床研究表明，长期失业会导致持久的不快乐感和低自尊。