dark

The time after sunset and before sunrise while it is dark outside.

An unilluminated area.

“he moved off into the darkness”

Absence of light or illumination.

Absence of moral or spiritual values.

“the powers of darkness”

An unenlightened state.

“he was in the dark concerning their intentions”

“his lectures dispelled the darkness”

Brunet (used of hair or skin or eyes).

“dark eyes”

Devoid of or deficient in light or brightness; shadowed or black.

“sitting in a dark corner”

“a dark day”

Not giving performances; closed.

“the theater is dark on Mondays”

Secret.

“keep it dark”

(used of color) having a dark hue.

“dark green”

“dark glasses”

Stemming from evil characteristics or forces; wicked or dishonorable.

“Darth Vader of the dark side”

“a dark purpose”

Causing dejection.

“the dark days of the war”

“a dark gloomy day”

Lacking enlightenment or knowledge or culture.

“the dark ages”

“a dark age in the history of education”

Marked by difficulty of style or expression.

“much that was dark is now quite clear to me”

Showing a brooding ill humor.

“a dark scowl”