Wise'ā-cre, n.
(wiz'ā-ker), n. [Ger. weissager, a foreteller, prophet, from weise, wise, and sagen, to say.]
Sense 1. A sayer of wise things; a prophet; a learned or wise man. [Obs.]
Pythagoras learned much . . . becoming a mighty wiseacre. Leland.
Sense 2. One who makes undue pretensions to wisdom; a would-be-wise person; hence, in contempt, a simpleton; a dunce.