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.
他太专注于他的书了,以至于对周围的噪音毫无察觉。