simple past tense and past participle of obscure

Made hidden, less visible, or dark.

Dark, faint or indistinct. / Hidden, out of sight or inconspicuous. / Difficult to understand. / Not well-known. / Unknown or uncertain; unclear.

(transitive) 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.

(literary) Darkness; the absence of light. / The state of being unknown; a thing that is unknown. / The quality of being difficult to understand; a thing that is difficult to understand.

The state or quality of being obscure.

In an obscure manner.

present participle of obscure

Third-person singular simple present indicative form of obscure

The state of being obscured. / A unit of measurement used in particular for smoke detectors which respond to absorption of light by smoke, in percent absorption per unit length, e.g. % obs/ft, % obs/m.