1. The quality of being acute or pointed; sharpness; as, the acuteness of an angle.
2. 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 fine distinctions.
Perhaps, also, he felt his professional acuteness interested in bringing it to a successful close. --Sir W. Scott.
3. Shrillness; high pitch; -- said of sounds.
4. Med. Violence of a disease, which brings it speedily to a crisis.
Syn: -- Penetration; sagacity; keenness; ingenuity; shrewdness; subtlety; sharp-wittedness.
n 1: a quick and penetrating intelligence; "he argued with great
acuteness"; "I admired the keenness of his mind" [syn: acuity,
2: the quality of having a sharp edge or point [ant: obtuseness]