In loose or extended use. The faint appearance of something seen through an obscuring medium. Obsolete.

Indistinct or diffuse luminousness; something exhibiting this quality.

Medicine. Opacity or clouding of the cornea, lens, etc., of the eye. Also: blurred vision or loss of visual clarity, contrast, or brightness…

concrete. A figure dimly or uncertainly perceived.

transferred. A blurred indistinct mass or area.

as n. Something indistinctly perceived. rare.