omniscient UK /ɒmˈnɪsɪənt/US /ɑmˈnɪʃənt/adjective 1noun 1forms 1 adjective1 •Having total knowledge.The story was narrated from an omniscient point of view.The Abrahamic God is omniscient. noun1 •One who has total knowledge.Those blind omniscients , those almighty slaves , Untenanting creation of its God — 1796 formsomniscients