adj.不快乐的；不高兴的；不幸福的；不满的

I overheard them saying they were unhappy. 我偶然听到他们说，他们很不快乐。

My heart bled for the poor unhappy children. 我心里为这些不快乐的孩子们感到悲痛。

I was unhappy because of the discomforts of travel. 我因为旅行的不适而感到不快。

He was unhappy because of his separation from his mother. 他因与母亲分离而感到不快。

She looked unhappy after she read the letter. 她看过信后显得挺不高兴。

He told me about his unhappy childhood. 他对我讲了他不幸福的童年。

He repined against his unhappy lot. 他自叹命运多舛。