I had now become bitter about senior management and their lack of support and care.
The battle does not appear to have become personally bitter.
The race, in which the candidates are spending a total of more than $1 million, has become intensely bitter.
They shudder at the thought of becoming bitter or cynical.
In recent months, the fight over thimerosal has become even more bitter.
The race, dead even in the polls all year, has become increasingly bitter.
He became bitter and begins a long history of plotting against his more powerful brother.
As there is less to dispute, liberals have become more bitter and angry.
But the current conflict has become unusually bitter and the past may not be a guide in this case.
Although the amount is modest by world trade standards, the dispute had become increasingly bitter.