Lacking progress in science or the arts; said of a time period.
With emphasis placed on the unpleasant aspects of life; said of a work of fiction, a work of nonfiction presented in narrative form or a portion of either.
Noun
A complete or (more often) partial absence of light.
(uncountable) Ignorance.
(uncountable) Nightfall.
A dark shade or dark passage in a painting, engraving, etc.