Synonyms for Unaware (same or very similar meaning)
WordNet sense 1 (not aware or knowing):
unwitting
WordNet sense 2 ((followed by `of') not knowing or perceiving):
unconscious
WordNet sense 3 ((followed by `to' or `of') lacking conscious awareness of):
oblivious
WordNet sense 4 ((often followed by `of') not aware):
incognizant
From the ODE community, based on WordNet
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