animosity

There has always been animosity [=hostility] between them. [=they have always disliked each other]他们对彼此一直充满敌意。

He felt nothing but animosity toward his boss. [=he disliked his boss very much]他对老板满心怨恨。

We put aside our personal animosities so that we could work together.我们暂时把个人恩怨放在一旁，这样才能一同工作。