o·bliv·i·ous /əˈblɪviəs/ adjectiveadj [not before noun]NOT KNOWnot knowing about or not noticing something that is happening around you 不知道的;未覺察到的 SYN unawareoblivious of/toHe seemed oblivious to the fact that he had hurt her. 他似乎沒有察覺自己傷害了她。
seemingly/apparently obliviousCongress was seemingly oblivious to these events. 國會對這些事件似乎毫不知情。
—obliviousness noun [uncountableU]