bitterness
bit-ter-ness
noun
A deep, lasting feeling of anger, resentment, or sadness due to unfairness.
"She spoke with bitterness about her past."
noun
The sharp, unpleasant taste, like that of strong coffee or quinine.
"A slight bitterness lingered on his tongue."
Thesaurus
Synonyms: bitter, tartness, jaundice, acrimony, thorniness, acerbity, resentment, rancor, rancour, gall