I . a.
1.
Dusky, dark, obscure, mysterious, indistinct, ill-defined, indefinite, shadowy, cloudy, faint.
2.
Dull, obtuse, slow to see, slow of understanding or perception.
3.
Darkened, obscured, clouded, faint, confused, shorn of its beams.
4.
Tarnished, blurred, sullied, dulled, dull.
II . v. a.
Darken, obscure, cloud, sully, tarnish, dull.