[syn: miasmal, miasmic, vaporous, vapourous]
WordNet (r) 3.0 (2006):
vapourous
    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]
    2: resembling or characteristic of vapor; "vaporous clouds"
       [syn: vaporific, vapourific, vaporish, vapourish,
       vaporous, vapourous]
    3: filled with vapor; "miasmic jungles"; "a vaporous bog" [syn:
       miasmal, miasmic, vaporous, vapourous]