BITTERNESS n.
ity or state of being bitter, sharp, or acrid, in either a literal or figurative sense; implacableness; resentfulness; severity; keenness of reproach or sarcasm; deep distress, grief, or vexation of mind. The lip that curls with bitterness. Percival. I will complain in the bitterness of my soul. Job vii. 11.…