present participle of obscure

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.

simple past tense and past participle of obscure

Made hidden, less visible, or dark.

The state or quality of being obscure.

In an obscure manner.

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.