oblivious

/əˈblɪ.vi.əs/adjective

Not noticing or not aware of what is happening around you (usually followed by to or of).

Example sentence

“He walked past us completely oblivious to our waving.”

Means unaware, not clumsy or forgetful: oblivious to the noise around her. Standard with 'to'.

Related words

obscureTo cover something up or block it from view.oblivionThe condition of being completely forgotten, or of noticing nothing around you.obsequiousToo eager to obey or please someone, in a way that seems insincere.obliterateTo destroy something so completely that nothing remains.observantQuick to notice things; watching carefully.obligatoryRequired by law, rules, or duty; something you must do.