Synonyms and related words :
abstruseness, adiaphanousness, ambiguity, amorphousness, asininity, blockishness, boobishness, boorishness, bovinity, cloddishness, cloudiness, crassness, crudeness, dark, darkness, denseness, density, dim-wittedness, dimness, doltishness, dull-wittedness, dullardism, dullness, dumbness, duncery, equivocation, fog, fogginess, fuzziness, grossness, hebetude, impenetrability, impermeability, imperviousness to light, indefiniteness, indeterminateness, indistinctness, intransparency, lethargy, loutishness, lumpishness, mist, mistiness, mumbo jumbo, murk, murkiness, mystification, ninnyism, oafdom, oafishness, obfuscation, obscurantism, obscuration, obscurity, obtuseness, opaque, opaqueness, perplexity, reconditeness, roil, roiledness, shapelessness, simpletonianism, slowness, sluggishness, sottishness, stolidity, stupidity, thick-headedness, thick-wittedness, thickness, turbidity, turbidness, unclarity, unclearness, unintelligibility, unplainness, unteachability, vagueness, wrongheadedness, yokelism