acuteness vs sharpness

acuteness and sharpness both are nouns.

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

As nouns, sharpness is a hypernym of acuteness; that is, sharpness is a word with a broader meaning than acuteness:

Other hypernyms of acuteness include keenness.

As nouns, acuteness and sharpness are synonyms defined as:

Other synonyms of acuteness include acuity, keenness.

acuteness (noun)	sharpness (noun)
the quality of having a sharp edge or point	harshness of manner
a quick and penetrating intelligence	thinness of edge or fineness of point
a sensitivity that is keen and highly developed	a strong odor or taste property
	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