Evincing black or foul traits of character; vile; wicked; atrocious; as, a dark villain; a dark deed.

n. (HR) Space. (See Big Black.)

devoid or partially devoid of light or brightness; shadowed or black or somber-colored; "sitting in a dark corner"; "a dark day"; "dark shadows"; "the theater is dark on Mondays"; "dark as the inside of a black cat"

stemming from evil characteristics or forces; wicked or dishonorable; "black deeds"; "a black lie"; "his black heart has concocted yet another black deed"; "Darth Vader of the dark side"; "a dark purpose"; "dark undercurrents of ethnic hostility"; "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy

not giving performances; closed; "the theater is dark on Mondays"

wine which is deep coloured, almost black, and with little brilliance