Acutest

adjective

1. Brief, quick, short.

   "It was an acute event."

2. High or shrill.

   "an acute accent or tone"

3. Intense, sensitive, sharp.

   "She had an acute sense of honour.  Eagles have very acute vision."

4. Urgent.

   "His need for medical attention was acute."

5. With the sides meeting directly to form an acute angle (at an apex or base).