abstruseness Synonyms

abstrusity profoundness profundity obscurity reconditeness obscureness puzzle roun secrecy shadowiness smokiness perplexity penumbra opaqueness murkiness mysteriousness mystery nebulosity obfuscation obliquity occultness opacity sphinx subtlety tickler esoterica blurriness brain-teaser unintelligibility eeriness cliffhanger arcaneness patchwork quilt complicatedness namelessness word game uncertainty vagueness woolliness mystique magic number unclearness ambivalence jigsaw lack of clarity muddiness ambiguities cryptogram darkness deepness