WordWeb Online

1. Transmitting light; able to be seen through with clarity
   "transparent crystal"
   - crystalline, crystal clear, limpid, lucid, pellucid
    
2. So thin as to transmit light
   "transparent chiffon"
   - diaphanous, filmy, gauzy, gauze-like, gossamer, see-through, sheer, vaporous, vapourous [Brit, non-standard], cobwebby, vapory [US], vapoury [Brit, Cdn]
    
3. Free of deceit
   - guileless
    
4. Easily understood or seen through (because of a lack of subtlety)
   "a transparent explanation"; "a transparent lie"

See also: clear, obvious, square, straight, thin, transparency, transparently, transparentness

Encyclopedia: Transparent