Having little or no light; not illuminated.

• Hard to see because of low brightness.

Of a deep or dull shade; not bright in color.

• Having low lightness in hue or tone.

Secret, covert, or hidden from public knowledge.

• Little-known or not documented; obscure.

Grim, sinister, or threatening in mood or tone.

• Emphasizing the bleak or macabre; as in dark humor.

Unclear or difficult to understand; obscure or ambiguous.

The absence of light; darkness.

• Nighttime or a dark place.

A state of ignorance or lack of knowledge.

A dark area or passage in a work of art.

To become dark; to lose light.

• To make dark; to dim or obscure.