The Collaborative International Dictionary of English v.0.48:

Gauzy \Gauz"y\, a.
   Pertaining to, or resembling, gauze; thin and slight as
   gauze.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gauzy
    adj 1: so thin as to transmit light; "a hat with a diaphanous
           veil"; "filmy wings of a moth"; "gauzy clouds of
           dandelion down"; "gossamer cobwebs"; "sheer silk
           stockings"; "transparent chiffon"; "vaporous silks" [syn:
           diaphanous, filmy, gauzy, gauze-like, gossamer,
           see-through, sheer, transparent, vaporous,
           vapourous, cobwebby]

Moby Thesaurus II by Grady Ward, 1.0:

83 Moby Thesaurus words for "gauzy":
   airy, attenuate, attenuated, boyish, clear, clear as crystal,
   crystal, crystal-clear, crystalline, dainty, delicate, diaphane,
   diaphanous, diluted, downy, ethereal, filmy, fine, fine-drawn,
   fine-grained, finespun, flimsy, fluffy, frail, fuzzy, girlish,
   gossamer, gossamery, gracile, insubstantial, lacy, light,
   light-pervious, limpid, lucid, misty, nonopaque, papery, peekaboo,
   pellucid, pubescent, rare, rarefied, refined, revealing, satin,
   satiny, see-through, sheer, silky, slender, slenderish, slight,
   slight-made, slim, slimmish, slinky, small, smooth, subtle, svelte,
   sylphlike, tenuous, thin, thin-bodied, thin-set, thin-spun,
   thinnish, threadlike, transparent, transpicuous, unclouded, vague,
   velutinous, velvety, wasp-waisted, watered, watered-down, watery,
   weak, willowy, wiredrawn, wispy