Dark(a.) Destitute of knowledge and culture; in moral or intellectual darkness; unrefined; ignorant.
Dark(a.) Destitute, or partially destitute, of light; not receiving, reflecting, or radiating light; wholly or partially black, or of some deep shade of color; not light-colored; as, a dark room; a dark day; dark cloth; dark paint; a dark complexion.
Dark(a.) Evincing black or foul traits of character; vile; wicked; atrocious; as, a dark villain; a dark deed.