stawać się gorzkim

When his efforts at conversion failed, he grew increasingly bitter toward them.

He grew bitter about prison restrictions on communicating with the boys.

Sometimes I grow bitter and am unable to contain myself.

He had grown bitter against his father for shooting him.

Here every spot was distinct with associations now grown bitter.

I heard my voice grow hard and bitter at last.

You will have to grow less bitter and more curious.

As the war grew more bitter, even murder was insufficient.

The night grew bitter, and we had to get close together for warmth.

The battle over how to meet the court order has grown increasingly bitter and personal.