The least you can do is set aside your old bitterness and begin anew.
An old bitterness rose in her, and she fought it back with an effort.
I was," she said, feeling an echo of the old bitterness even now.
For just an instant, all the old bitterness began to well up inside her again.
The Democrats, the president added, are offering the nation nothing more than "a lot of old bitterness and anger."
The old bitterness was back with a vengeance and she kept her face averted.
Now a sliver of the old bitterness slipped back into her words.
Her voice was deep and strange now, but the same old bitterness rode it.
A bitterness old enough to feel tired filled my throat.
All the old bitterness and stubbornness were gone from me now.