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;未觉察到的 SYN unawareoblivious of/to He seemed oblivious to the fact that he had hurt her. 他似乎没有察觉自己伤害了她。
seemingly/apparently oblivious Congress was seemingly oblivious to these events. 国会对这些事件似乎毫不知情。
—obliviousness noun [uncountableU]