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.
© Webster 1913.