avidity vs keenness

avidity and keenness both are nouns.

Word	Noun	Adjective	Verb	Adverb
avidity	Yes	No	No	No
keenness	Yes	No	No	No

As nouns, avidity and keenness are synonyms defined as:

avidity and keenness: a positive feeling of wanting to push ahead with something

Other synonyms of avidity include avidness, eagerness.

avidity (noun)	keenness (noun)
a positive feeling of wanting to push ahead with something	thinness of edge or fineness of point
	a quick and penetrating intelligence
	a positive feeling of wanting to push ahead with something