keenness vs avidness

keenness and avidness both are nouns.

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

As nouns, keenness and avidness are synonyms defined as:

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

Other synonyms of keenness include avidity, eagerness.

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