This is the 3437th most frequent Swedish word.
bitter
Having a sharp, pungent, or unpleasant taste, or feeling resentful or angry.
The word 'bitter' here expresses an emotional state of resentment or disappointment.
Han var bitter över förlusten.
He was bitter about the loss.
In this context, 'bitter' describes a taste that is sharp or not sweet, often used in culinary contexts.
Bitter choklad har en stark smak.
Bitter chocolate has a strong flavor.
The term 'bitter' here accentuates a sense of irony that is painful or poignant.