Webster's Revised Unabridged Dictionary · 1913

Obscure

Obscure (ob*skūr") , adjective

[Latin obscurus, orig., covered; ob- (see Ob-) + a root probably meaning, to cover; compare Latin scutum shield, Sanskrit sku to cover: compare French obscur. Compare Sky.]

1.
Covered over, shaded, or darkened; destitute of light; imperfectly illuminated; dusky; dim.
His lamp shall be put out in obscure darkness. — Bible (KJV) - Proverb xx. 20
2.
Of or pertaining to darkness or night; inconspicuous to the sight; indistinctly seen; hidden; retired; remote from observation; unnoticed.
The obscure bird Clamored the livelong night. — Shakespeare
The obscure corners of the earth. — Sir J. Davies
3.
Not noticeable; humble; mean.
O base and obscure vulgar. — Shakespeare
An obscure person. — Atterbury
4.
Not easily understood; not clear or legible; abstruse or incomprehensible; as, an obscure passage or inscription.
5.
Not clear, full, or distinct; clouded; imperfect; as, an obscure view of remote objects.
Collocations (1)
Obscure rays (Optics) , those rays which are not luminous or visible, and which in the spectrum are beyond the limits of the visible portion.

Obscure (ob*skūrd") , transitive verb

[Latin obscurare, from obscurus: compare Old French obscurer. See Obscure, a.]

To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious.
They are all couched in a pit hard by Herne's oak, with obscured lights. — Shakespeare
Why, 't is an office of discovery, love, And I should be obscured. — Shakespeare
There is scarce any duty which has been so obscured by the writings of learned men as this. — Wake
And seest not sin obscures thy godlike frame? — Dryden

Obscure (ob*skūr") , intransitive verb

To conceal one's self; to hide; to keep dark. [Obsolete]
How! There's bad news. I must obscure, and hear it. — Beau. & Fl

Obscure , noun

Obscurity. [Obsolete] — Milton