Destitute of light; obscure. A dark atmosphere is one which prevents vision.

Wholly or partially black; having the quality opposite to white; as a dark color or substance.

Gloomy; disheartening; having unfavorable prospects; as a dark time in political affairs. There is in every true woman’s heart a spark of heavenly fire, which beams and blazes in the dark hour of adversity. Irving.

Obscure; not easily understood or explained; as a dark passage in an author; a dark saying.

Mysterious; as, the ways of Providence are often dark to human reason.

Not enlightened with knowledge; destitute of learning and science; rude; ignorant; as a dark age.

Not vivid; partially black. Leviticus 13:6, - .

Blind.

Gloomy; not cheerful; as a dark temper.

Obscure; concealed; secret; not understood; as a dark design.

Unclean; foul.

Opake. But dark and opake are not synonymous. Chalk is opake, but not dark.

Keeping designs concealed. The dark unrelenting Tiberius. Gibbon.

Darkness; obscurity; the absence of light. We say we can hear in the dark. Shall the wonders be known in the dark? Psalm 88:172.

Obscurity; secrecy; a state unknown; as, things done in the dark.

Obscurity; a state of ignorance; as, we are all in the dark.

To make dark; to deprive of light; as, close the shutters and darken the room.

To obscure; to cloud. His confidence seldom darkened his foresight. Bacon.

To make black. The locusts darkened the land. Exodus 10:14, 15.

To make dim; to deprive of vision. Let their eyes be darkened. Romans 11:70.