Entry 1 sense Webster, 1913 Schemer /skēm'-ẽr/ · Schem·er · IPA /ˈskimɚ/ 01 n. One who forms schemes; a projector; esp., a plotter; an intriguer. 1. One who forms schemes; a projector; esp., a plotter; an intriguer. “Schemers and confederates in guilt.” — Paley.