knifelike

adjective

1. 1

   having a sharp or distinct edge

   a narrow knifelike profile

2. 2

   cutting or able to cut as if with a knife

3. 3

   painful as if caused by a sharp instrument

   a cutting wind

   keen winds

4. 4

   having or demonstrating ability to recognize or draw fine distinctions

   an acute observer of politics and politicians

   incisive comments