tartness vs acerbity

tartness and acerbity both are nouns.

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

As nouns, tartness and acerbity are synonyms defined as:

As nouns, tartness and acerbity are synonyms defined as:

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

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