Antireflective articles and methods of making the same

A composite comprising:

• (a) a substrate having at least 90% transmission in visible light and less than 5% haze, the substrate having opposing first and second surfaces;
• (b) a nanostructured article disposed on the first surface of the substrate, the nanostructured article comprising a matrix and a nanoscale dispersed phase, and having a major surface that is only an exposed etched random nanostructured anisotropic surface defined by nano-pillars or nano-columns comprising the matrix and nanoscale dispersed phase, wherein the nano-pillars and nano-columns are structural asperities having an aspect ratio of 5:1 or greater, and wherein the nanostructured article has a length along an x-direction, a width along a y-direction, and a thickness along a z-direction, wherein the nanoscale features comprise nano-pillars generally in the z-direction, wherein a majority of the nano-pillars are capped with physically exposed nanoscale dispersed phase from the nanoscale phase in the matrix;
• (c) an optically clear adhesive disposed on the second surface of the substrate, the optically clear adhesive having at least 90% transmission in visible light and less than 5% haze.