oblivious
🇺🇸
/əˈblɪviəs/
🇬🇧
/əˈblɪviəs/
completely unaware or not noticing something
He was so engrossed in his book that he was oblivious to the noise around him.
그는 책에 너무 몰두해 있었기 때문에 주변의 소음에 전혀 깨닫지 못했습니다.