sunless

synkkä Without the sun or sunshine; shaded; shadowed.
1816, w:Samuel Taylor Coleridge|Samuel Taylor Coleridge, Kubla Khan (or, a Vision in a Dream. A Fragment):

In Xanadu did Kubla Khan

A stately pleasure dome decree:

Where Alph, the sacred river, ran

Through caverns measureless to man

Down to a sunless sea.

When I first saw her, her countenance was sunless, her complexion colourless; she looked like one who had no source of enjoyment, no store of bliss anywhere in the world.