obscure

I. a.

1.

Dark, gloomy, rayless, darksome, unilluminated, unenlightened, dusky, sombre, sombrous, lurid, shadowy, murky, dim.

2.

Unintelligible, incomprehensible, indistinct, indefinite, vague, doubtful, enigmatical, mysterious, mystic, mystical, recondite, abstruse, cabalistic, transcendental, high, intricate, involved, difficult, blind.

3.

Retired, remote, secluded.

4.

Unknown, undistinguished, nameless, unnoted, unnoticed, renownless, unhonored, humble, inglorious.

5.

Imperfect, dim, indistinct, defective.

II. v. a.

1.

Darken, cloud, eclipse, dim, shade, obfuscate.

2.

Degrade, tarnish.

3.

Hide, disguise, keep in the dark, conceal, cover.