1. (adj)unaware, incognizant (often followed by `of') not aware "seemed unaware of the scrutiny"; "unaware of the danger they were in"; "unaware of the newborn hope"; "the most unaware person I've known"
Definitions of 'unaware'
Webster 1913 Dictionary
1. (adj)unaware not aware; not noticing; giving no heed; thoughtless; inattentive