incognizant

not informed about or aware of something a bunch of loud partygoers who seemed utterly incognizant of the disturbance they were creating Synonyms clueless, ignorant, innocent, insensible, nescient, oblivious, unacquainted, unaware, unconscious, uninformed, unknowing, unmindful, unwittingRelated Words uneducated, unschooled, untaught; absent, absentminded, abstracted, heedless, inattentive, inconscientNear Antonyms au courant, hip, plugged-in, up-to-date; educated, knowledgeable, schooled, taught; heedful, observant; sensitive, sentientAntonyms acquainted, aware, cognizant, conscious, conversant, grounded, informed, knowing, mindful, witting