adjective

(especially of fabric) thin and translucent.

filmy white voile

diaphanous,transparent,see-through,translucent,sheer,gauze-like,gauzy,gossamer,gossamery,cobwebby,shimmering,delicate,fine,ultra-fine,light,thin,airy,floaty,wispy,silky,fragile,flimsy,unsubstantial,insubstantial