彼の不遜な態度は誰もが嫌っていた。
Everyone disliked his arrogant attitude.
目上の人に対してそんな不遜な口をきくものではない。
You shouldn't talk so insolently to your superiors.
新人の不遜な振る舞いが社内で問題になった。
The new employee's haughty behavior became an issue within the company.
成功を重ねるうちに、彼の不遜さはますます目立つようになった。
As his successes piled up, his arrogance became more and more conspicuous.