Related Clues:

• Clammy part in sprained ankle
• Like catacombs, perhaps
• Cold and humid
• Cold and damp, as a cellar
• Make lights less bright
• Like low lighting
• Faded image partly indistinct
• Barely perceptible, say
• Barely seen
• Hard to see in
• Much less than brilliant
• End of crossword — I am needing a bit of illumination?
• Low-wattage
• Damp in a gross way
• Clammy Daniel meets Kelvin