(n.) The quality of being grave.

Gothicism ablepsia adiaphanousness age of ignorance amaurosis amorphousness barbarism benightedness benightment blackishness blackness bleakness bleariness blind side blind spot blindfolding blinding blindness blur blurriness blurring the eyes cataract cecity cloudiness dark dark age dark of night darkishness darksomeness defocus depriving of sight dim-sightedness dimness dismalness dreariness drop serene duskiness duskness economic blindness ever-during dark excecation eyelessness faintness feebleness filminess fog fogginess funereality fuzziness glaucoma gloom gloominess graveness gravity grimness gutta serena half-visibility haziness heathenism hoodwinking imperviousness to light indefiniteness indeterminateness indistinctness indistinguishability intransparency lack of vision low profile making blind mist mistiness mumbo jumbo murk murkiness mystification night nighttide nighttime niphablepsia obfuscation obscurantism obscuration obscurity opacity opaque opaqueness paganism paleness partial blindness perplexity psychic blindness reduced sight roil roiledness sable night sadness savagery semivisibility shadowiness shapelessness sightless eyes sightlessness snow blindness soberness sobriety soft focus solemnity somberness soul-blindness spiritual blindness stone-blindness swarth swarthiness swartness total blindness trachoma turbidity turbidness uncertainty unclarity unclearness unenlightenment unplainness unseeingness vague appearance vagueness weakness wearifulness wearisomeness