The word you are looking for is "acrimonious."
The part of speech for this particular word is a noun.
Prefixes do not have their own part of speech.
the part of speech for hand is a noun or verb
the part of speech in core is a noun
oxymoron
idiom
He made a relatively famous speech at Valley Forge to rally his troops in a bitter winter to continue their fight for freedom.
we have bitter taste buds in the mouth and and when you eat something bitter and the food goes on that part of the mouth it reacts.
A few of them would be, sarcastic, bitter, caustic, or harsh.
part of speech
The part of speech for this particular word is a noun.
A Seder of which eating bitter herbs is just a small part.
yes.that's why it's called a bitter herb. Most Jews use horseradish for this part of the Passover ritual meal.
adverb
what part of speech is work
what part of speech is beneath