oblivious

not aware of or noticing something, especially when it is obvious to other people

desconocedor(a), ajeno(a)

• be oblivious (to something)

Collocations oblivious to danger · oblivious of other people's feelings

• She was completely oblivious to the fact that she had made a mistake.

  Ella estaba completamente ajena al hecho de que había cometido un error.

not remembering something or someone from the past

olvidado, sin memoria

• be oblivious (of somebody/something)

Collocations oblivious of the past · oblivious to old friends

• He was so busy that he became oblivious of his former colleagues.

  Estaba tan ocupado que llegó a olvidarse de sus colegas antiguos.