repˈtilityrare. [-ity.] †a. The habit of creeping. Obs. b. Reptilian character or conduct. 1657Tomlinson Renou's Disp. 349 Knot-grasse..called Serpinaca from its reptility.1745A. Hill Wks. II. 250 One might pronounce him fallen below contempt, but that he aims to heave, in his reptility.