Bleary, Blind, Blurred, Blurry, Boding, Brown, Brunet, Censored, Cheerless, Classified, Close, Closed, Clouded, Cloudy, Complicated, Concealed, Confused, Corrupt, Corrupted, Criminal, Crooked, Cryptic, Damnable, Deep, Dejected, Devilish, Devious, Dim, Dire, Dirty, Discreet, Disgraceful, Dishonest, Dismal, Doleful, Doubtful, Dour, Drab, Drear, Dreary, Dubious, Dull, Dun, Dusk, Dusky, Ebony, Eclipsed, Enigmatic, Esoteric, Evasive, Evil, Eyeless, Faint, Fateful, Feeble, Felonious, Filmy, Fishy, Flagrant, Fog, Foggy, Foreboding, Foul, Fraudulent, Frowning, Funereal, Fuzziness, Fuzzy, Gloom, Gloominess, Gloomy, Glowering, Glum, Grave, Obfuscated, Obfuscation, Obscurantism, Obscuration, Obscure, Obscured, Obscurity, Occult, Ominous, Opacity, Opaque, Overcast, Paganism, Pale, Perplexity, Pessimistic, Portending, Profound, Puzzling, Questionable, Rank, Raven, Recondite, Reprehensible, Reprobate, Restricted, Rotten, Sable, Sad, Satanic, Saturnine, Savagery, Scandalous, Scowling, Secret, Secretive, Shadowy, Shady, Shameful, Shameless, Shapeless, Shifty, Sightless, Sinful, Sinister, Slippery, Smothered, Sober, Solemn, Sorrowful, Squally, Starless, Stifled, Stormy, Sulky, Sullen, Sunless, Suntanned, Suppressed, Surly, Suspicious, Swarthy, Tarry, Threatening, Transcendent, Tricky, Turbid, Abominable, Abstruse, Amoral, Amorphous, Apocalyptic, Arcane, Arrant, Atrocious, Bad, Baleful, Barbarism, Base, Benighted, Black, Blackish, Blackness, Blameworthy, Bleak, Grim, Hazy, Heathenism, Heavy, Heinous, Hellish, Hermetic, Hidden, Ignorance, Ignorant, Ill, Immoral, Impenetrable, Improper, Inauspicious, Incomprehensible, Inconspicuous, Indefinite, Indeterminate, Indirect, Indistinct, Indistinctness, Indistinguishable, Infamous, Iniquitous, Inky, Insidious, Intricate, Jetty, Joyless, Knavish, Knotty, Latent, Low, Lowering, Melancholy, Menacing, Midnight, Mist, Mistiness, Misty, Monstrous, Moody, Moping, Morose, Mournful, Muddy, Murk, Murkiness, Murky, Mysterious, Mystic, Mystical, Mystification, Mystifying, Naughty, Nebulous, Night, Nightfall, Ulterior, Uncertain, Unclear, Uncommunicative, Unconscionable, Undefined, Underhand, Undiscerning, Undisclosed, Unenlightened, Unethical, Unfathomable, Unforgivable, Unfortunate, Unlit, Unlucky, Unpardonable, Unprincipled, Unpromising, Unrevealed, Unsavory, Unscrupulous, Unseeing, Unspeakable, Unspoken, Untold, Untoward, Unutterable, Unworthy, Vague, Vagueness, Vicious, Vile, Villainous, Weak, Wearisome, Weary, Wicked, Wrong