[Omni- + L. sciens, -entis, p. pr. of scire to know: cf. F. omniscient. See Science.]
Having universal knowledge; knowing all things; infinitely knowing or wise; as, the omniscient God. -- Om·nis·cient·ly, adv.
For what can scape the eyeMilton.
Of God all-seeing, or deceive his heart
Omniscient?