'Incisive' definitions:

Definition of 'incisive'

(from WordNet)
adjective
Having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations" [syn: acute, discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp]
adjective
Suitable for cutting or piercing; "incisive teeth"

Definition of 'Incisive'

From: GCIDE
  • Incisive \In*ci"sive\, a. [Cf. F. incisif.] [1913 Webster]
  • 1. Having the quality of incising, cutting, or penetrating, as with a sharp instrument; cutting; hence, sharp; acute; sarcastic; biting; trenchant. "An incisive, high voice." --G. Eliot. [1913 Webster]
  • And her incisive smile accrediting That treason of false witness in my blush. --Mrs. Browning. [1913 Webster]
  • 2. (Anat.) Of or pertaining to the incisors; incisor; as, the incisive bones, the premaxillaries. [1913 Webster]
  • 3. Clearly and succinctly stated, with penetrating insight into the issue at hand; as, an incisive comment. [PJC]