Sharpness
Part of speech: noun
Definition: the cutting ability of an edge; keenness the fineness of the point a pointed object The product or result of being sharp. pungency or acidity distinctness, focus acuteness or acuity
Example sentence: The older you get, you do lose a little bit of sharpness. I experienced that myself as a player.
Acuteness
Part of speech: noun
Definition: The quality of being acute or pointed; as, the acuteness of an angle.The faculty of nice discernment or perception; sensitiveness; – applied to the senses, or the understanding. By acuteness of feeling, we perceive small objects or slight impressions: by acuteness of intellect, we discern nice distinctions.Shrillness; high pitch; – said of sounds.Violence of a disease, which brings it speedily to a crisis.Shrewdness, quickness of mind