Definition of 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.
• a. - Not clear to the understanding; not easily seen through; obscure; mysterious; hidden.
• a. - Destitute of knowledge and culture; in moral or intellectual darkness; unrefined; ignorant.
• a. - Evincing black or foul traits of character; vile; wicked; atrocious; as, a dark villain; a dark deed.
• a. - Foreboding evil; gloomy; jealous; suspicious.
• a. - Deprived of sight; blind.
• n. - Absence of light; darkness; obscurity; a place where there is little or no light.
• n. - The condition of ignorance; gloom; secrecy.
• n. - A dark shade or dark passage in a painting, engraving, or the like; as, the light and darks are well contrasted.
• v. t. - To darken to obscure.