noun shrillness; high pitch;
said of sounds.
2. acuteness ·noun violence of a disease, which brings it speedily to a crisis.
3. acuteness ·noun the quality of being acute or pointed; sharpness; as, the acuteness of an angle.
4. acuteness ·noun 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.