Dark

1. To darken to obscure.
2. Not clear to the understanding; not easily seen through; obscure; mysterious; hidden.
3. Absence of light; darkness; obscurity; a place where there is little or no light.
4. The condition of ignorance; gloom; secrecy.
5. 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.
6. Evincing black or foul traits of character; vile; wicked; atrocious; as, a dark villain; a dark deed.
7. Foreboding evil; gloomy; jealous; suspicious.
8. Destitute of knowledge and culture; in moral or intellectual darkness; unrefined; ignorant.
9. Deprived of sight; blind.
10. A dark shade or dark passage in a painting, engraving, or the like; as, the light and darks are well contrasted.