From The Collaborative International Dictionary of English v.0.48:
Obscure \Ob*scure"\ ([o^]b*sk[=u]r"), a. [Compar. Obscurer ([o^]b*sk[=u]r"[~e]r); superl. Obscurest.] [L. obscurus, orig., covered; ob- (see Ob-) + a root probably meaning, to cover; cf. L. scutum shield, Skr. sku to cover: cf. F. obscur. Cf. Sky.] [1913 Webster] 1. Covered over, shaded, or darkened; destitute of light; imperfectly illuminated; dusky; dim. [1913 Webster]
His lamp shall be put out in obscure darkness. --Prov. xx. 20. [1913 Webster]
2. Of or pertaining to darkness or night; inconspicuous to the sight; indistinctly seen; hidden; retired; remote from observation; unnoticed. [1913 Webster]
The obscure bird Clamored the livelong night. --Shak. [1913 Webster]
The obscure corners of the earth. --Sir J. Davies. [1913 Webster]
3. Not noticeable; humble; mean. "O base and obscure vulgar." --Shak. "An obscure person." --Atterbury. [1913 Webster]
4. Not easily understood; not clear or legible; abstruse or incomprehensible; as, an obscure passage or inscription. [1913 Webster]
5. Not clear, full, or distinct; clouded; imperfect; as, an obscure view of remote objects. [1913 Webster]
Obscure rays (Opt.), those rays which are not luminous or visible, and which in the spectrum are beyond the limits of the visible portion. [1913 Webster]
Syn: Dark; dim; darksome; dusky; shadowy; misty; abstruse; intricate; difficult; mysterious; retired; unnoticed; unknown; humble; mean; indistinct. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Obscure \Ob*scure"\ ([o^]b*sk[=u]r"), v. i. To conceal one's self; to hide; to keep dark. [Obs.] [1913 Webster]
How! There's bad news. I must obscure, and hear it. --Beau. & Fl. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Obscure \Ob*scure"\, n. Obscurity. [Obs.] --Milton. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Obscure \Ob*scure"\, v. t. [imp. & p. p. Obscured ([o^]b*sk[=u]rd"); p. pr. & vb. n. Obscuring.] [L. obscurare, fr. obscurus: cf. OF. 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. [1913 Webster]
They are all couched in a pit hard by Herne's oak, with obscured lights. --Shak. [1913 Webster]
Why, 't is an office of discovery, love, And I should be obscured. --Shak. [1913 Webster]
There is scarce any duty which has been so obscured by the writings of learned men as this. --Wake. [1913 Webster]
And seest not sin obscures thy godlike frame? --Dryden. [1913 Webster]