dark
adjective
°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."
noun
°A complete or (more often) partial absence of light.
°Ignorance.
"We kept him in the dark."
synonyms: dim, gloomy, hidden, secret more» , sinister, malign, deep, hopeless, negative, pessimistic