1. So thin as to transmit light
   - diaphanous, filmy, gauzy, gossamer, see-through, sheer, transparent, vaporous, vapourous [Brit, non-standard], cobwebby, vapory [US], vapoury [Brit, Cdn]

See also: thin

• high-hat cymbal
• high-interest
• high-keyed
• high-level
• high-level formatting
• high-level language
• high-level radioactive waste
• high-low
• high-low-jack
• high-minded
• high-mindedly
• high-mindedness
• high-muck-a-muck
• high-necked
• high-octane
• high-pass filter
• high-performance
• high-pitched
• high-potential
• high-power
• high-powered
• high-pressure
• high-priced
• high-principled
• high-protein diet