He speaks deprecatingly of his father as a lonely man.

他不以为然地说到他父亲是一个孤独的人。

《柯林斯英汉双解大词典》

He was a lonely man after his wife left.

妻子离去以后，他便成了一个孤独的人。

youdao

On a dark night, a man came to a lonely village.

在一个漆黑的夜晚，一个男人来到了一个偏僻的村庄。

youdao

I am a crowd, I am a lonely man, I am nothing.

我是胆小鬼，我是孤独的人，我不值一钱。

耶鲁公开课 - 现代诗歌课程节选

He is never alone, but is nonetheless a lonely man in the dark halls of the palace.

CNN: ASIANOW - TIME Asia | Thailand: The King and Ire

The story concerns the struggles of a nearly aphasic, socially challenged yet smart, painfully self-aware, and desperately lonely young man to get through his days and nights.

NEWYORKER: Frownland

Italian actors picked up the best actor and actress categories - Luigi Lo Cascio won for Luce dei miei Occhi (Light of My Eyes), about a lonely young man and his obsession with a single mother.

BBC: Indian film scoops top Venice prize