Synonyms for See-through (same or very similar meaning)
WordNet sense 1 (so thin as to transmit light):
cobwebby, diaphanous, filmy, gauzy, gossamer, sheer, transparent, vaporous, gauze-like, vapourousWordNet sense 2 (of relatively small extent from one surface to the opposite or in cross section):
thinFrom the ODE community, based on WordNetadd/edit