oblivious
/əˈblɪviəs/ adjective C1- Lacking awareness; unmindful; unaware, unconscious of. · Your grandmother is completely oblivious to her surroundings.
- Forgetful. · He's hopelessly oblivious, always forgetting his appointments.
From the library
Marilla found Anne face downward on her bed, crying bitterly, quite oblivious of muddy boots on a clean counterpane.
Gilbert Blythe was trying to make Anne Shirley look at him and failing utterly, because Anne was at that moment totally oblivious not only to the very existence of Gilbert Blythe, but of every other scholar in Avonlea school itself.
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