impermeated,a.|ɪmˈpɜːmiːeɪtɪd| [f. im-2 + permeated, pa.pple. of permeate v.] Not permeated, traversed, or penetrated; unpermeated. 1808J. Barlow Columb. ix. 50 A formless dark impermeated mass.1847–9Todd Cycl.Anat. IV. 521/1 A thin plate of bone, impermeated by vessels.