dark·ness ˈdärknəs/ noun 1. the partial or total absence of light. "the office was in darkness" synonyms: dark, blackness, gloom, dimness, murkiness, shadow, shade; More night. "they began to make camp before darkness fell" synonyms: night, nighttime, dark "darkness fell" the quality of being dark in color. "the darkness of his jacket" synonyms: dark, blackness, gloom, dimness, murkiness, shadow, shade; More 2. wickedness or evil. "the forces of darkness" synonyms: evil, wickedness, sin, iniquity, immorality; all rights reserved® darkness™ copyright©