KEENNESS
sharpness, keenness
(noun) thinness of edge or fineness of point
acuteness, acuity, sharpness, keenness
(noun) a quick and penetrating intelligence; “he argued with great acuteness”; “I admired the keenness of his mind”
eagerness, avidity, avidness, keenness
(noun) a positive feeling of wanting to push ahead with something
Source: WordNet® 3.1
Etymology
Noun
keenness (countable and uncountable, plural keennesses)
sharpness or cutting ability
astuteness or sagacity
eagerness or enthusiasm
Source: Wiktionary
Keen"ness, n.
Definition: The quality or state of being keen.
Source: Webster’s Unabridged Dictionary 1913 Edition