acuteness acuteness /əˈkjuːtnəs/

noun

1. The quality of having a sharp edge or point  ( acuteness )
   the quality of having a sharp edge or point
   
2. A quick and penetrating intelligence  ( acuity , acuteness , keenness , sharpness )
   a quick and penetrating intelligence
    He argued with great acuteness
   he argued with great acuteness
    I admired the keenness of his mind
   I admired the keenness of his mind
   
3. A sensitivity that is keen and highly developed  ( acuteness )
   a sensitivity that is keen and highly developed
    Dogs have a remarkable acuteness of smell
   dogs have a remarkable acuteness of smell