vinegarishness vs sourness

vinegarishness and sourness both are nouns.

Word	Noun	Adjective	Verb	Adverb
vinegarishness	Yes	No	No	No
sourness	Yes	No	No	No

As nouns, sourness is a hypernym of vinegarishness; that is, sourness is a word with a broader meaning than vinegarishness:

Other hypernyms of vinegarishness include acidity, sour.

vinegarishness (noun)	sourness (noun)
a sourness resembling that of vinegar	the property of being acidic
	a sullen moody resentful disposition
	the taste experience when vinegar or lemon juice is taken into the mouth