incisive

adjective

1. 1

   Quickly proceeding to judgment and forceful in expression; decisive; forthright.

   “An incisive producer, who expressed vehement disapproval with my pitch upon my first sentence.”

2. 2

   Intelligently analytical and concise.

3. 3

   Having the quality of incising, cutting, or penetrating, as with a sharp instrument; sharp; acute; sarcastic; biting.

4. 4

   Of or relating to the incisors.

   “the incisive bones, the premaxillaries”