In‐ci″sive (?), a. [Cf. F. incisif.]
1. Having the quality of incising, cutting, or penetrating, as with a sharp instrument; cutting; hence, sharp; acute; sarcastic; biting. “An incisive, high voice.” G. Eliot.
And her incisive smile accrediting
That treason of false witness in my blush. Mrs. Browning.
2. (Anat.) Of or pertaining to the incisors; incisor; as, the incisive bones, the premaxillaries.