- Deprived of sight; blind.
- Not clear to the understanding; not easily through; obscure; mysterious; hidden.
- Conducive to hopelessness; depressing or bleak.
"the Great Depression was a dark time; the film was a dark psychological thriller"
- (of a source of light) Extinguished.
"Dark signals should be treated as all-way stop signs."
- Hidden, secret, obscure.
- Without moral or spiritual light; sinister, malign.
"a dark villain; a dark deed"
- 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.
"The ending of this book is rather dark."
- Having an absolute or (more often) relative lack of light.
"The room was too dark for reading."
- (of colour) Dull or deeper in hue; not bright or light.
"my sister's hair is darker than mine; her skin grew dark with a suntan"
- (gambling, of race horses) Having racing capability not widely known.
- Lacking progress in science or the arts; said of a time period.
- A complete or (more often) partial absence of light.
"Dark surrounds us completely."
- (uncountable) Nightfall.
"It was after dark before we got to playing baseball."
- (uncountable) Ignorance.
"The lawyer was left in the dark as to why the jury was dismissed."
- A dark shade or dark passage in a painting, engraving, etc.
"We kept him in the dark."