Incisive
Incisive , adjective
[Compare French incisif.]
1.
Having the quality of incising, cutting, or penetrating, as with a sharp instrument; cutting;
sharp; acute; sarcastic; biting; trenchant.
An incisive, high voice.
And her incisive smile accrediting
That treason of false witness in my blush.
2.
(Anatomy) Of or pertaining to the incisors; incisor; as, the incisive bones, the premaxillaries.
3.
Clearly and succinctly stated, with penetrating insight into the issue at hand; as, an incisive comment.