WordWeb Online

1. A sensitivity that is keen and highly developed
   "dogs have a remarkable acuteness of smell"
    
2. A quick and penetrating intelligence
   "he argued with great acuteness"
   - acuity, sharpness, keenness
    
3. The quality of having a sharp edge or point

Derived forms: acutenesses

See also: acute

Type of: intelligence, keenness, sensibility, sensitiveness, sensitivity, sharpness

Antonym: obtuseness