(n.) The faculty of nice discernment or perception; acumen; keenness; sharpness; 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.
ACUTENESS
Meaning of ACUTENESS in English
Webster's English dictionary. Английский словарь Webster. 2012