sharpness vs keenness

sharpness and keenness both are nouns.

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

As nouns, sharpness and keenness are synonyms defined as:

As nouns, sharpness and keenness are synonyms defined as:

Other synonyms of sharpness include acuity, acuteness.

sharpness (noun)	keenness (noun)
harshness of manner	thinness of edge or fineness of point
thinness of edge or fineness of point	a quick and penetrating intelligence
a strong odor or taste property	a positive feeling of wanting to push ahead with something
the quality of being sharp and clear
the attribute of urgency in tone of voice
the quality of being keenly and painfully felt
a quick and penetrating intelligence