penumbra Synonyms

grey area arcaneness amorphousness half-light blurriness ambivalence denseness veil umbrage umbra shroud shadow shadiness shade screen blurredness clandestineness demi-monde periphery outskirt cover confusion concealment complication complexity cloudiness circumlocution caliginosity blackness bewilderment back anonymity ambiguousness ambiguity adumbration covertness curiousness obscurity gloominess gloom dusk doubt dirtiness dimness dimming difficulty depth demimonde deepness darkness