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.