As nouns the difference between bitterness and embitteredness
is that bitterness is the quality of having a bitter taste while embitteredness is the state or condition of being embittered; bitterness.
bitterness
English
Noun
the quality of having a bitter taste
the quality of feeling bitter; acrimony, resentment
Synonyms
* (quality of being bitter in taste) acerbicness, acridity, acridness
* (quality of feeling bitter) acrimony, gall, rancor/rancour, resentment
embitteredness
English
Noun
(-)
The state or condition of being embittered; bitterness.