† ˈmonstrable,a.Obs.rare—1. [ad. L. monstrābil-is, f.monstrāre: see monstrate v. and -able.] Capable of being shown or demonstrated. c1450Mirour Saluacioun 1694 Thre thinges notable The whilk be thre figures of olde tyme ware monstrable.1656in Blount Glossogr.