tartness vs acrimony

tartness and acrimony both are nouns.

Word	Noun	Adjective	Verb	Adverb
tartness	Yes	No	No	No
acrimony	Yes	No	No	No

As nouns, tartness and acrimony are synonyms defined as:

Other synonyms of tartness include acerbity, bitterness, jaundice, thorniness.

tartness (noun)	acrimony (noun)
a sharp sour taste	a rough and bitter manner
a rough and bitter manner
the taste experience when vinegar or lemon juice is taken into the mouth