#1 keenness n. [acuteness, acuity, sharpness] a quick and penetrating intelligence; "he argued with great acuteness"; "I admired the keenness of his mind". wn
#2 keenness n. [eagerness, avidity, avidness] a positive feeling of wanting to push ahead with something. wn
#3 keenness n. [sharpness] thinness of edge or fineness of point. wn
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