She was very indignant at the way she had been treated.

她对自己受到的待遇大为光火。

《牛津词典》

He was very indignant with his wife over her improper conduct.

他对他妻子的不端行为感到非常愤慨。

《新英汉大辞典》

He felt very indignant about the way he had been treated.

他对人们待他的那种方式感到愤愤不平。

youdao

Last month, with Spanish youth camping on the streets and then Greek radical youth launching their copycat occupations, these not-very-indignant-but-quietly-livid ones got their tents out and began camping here, right on the doorstep of the ministry they hope to work in.

BBC: Greece: Tax collectors hit the pavements, seeking work