impenetrability
im.pen.e.tra.bil.i.ty \(.)im-.pen-*-tr*-'bil-*t-e-\ n 1: the quality or state of being impenetrable 2: the inability of two portions of matter to occupy the same space at the same time
im.pen.e.tra.bil.i.ty \(.)im-.pen-*-tr*-'bil-*t-e-\ n 1: the quality or state of being impenetrable 2: the inability of two portions of matter to occupy the same space at the same time