unaware [ˌʌnəˈweə(r)]

以下由轻松背单词网站提供

adj.不知道的，未意识到的；adv.意外地；不知不觉地

not understanding or realising something

They were unaware that war was near. 他们不知道战争即将爆发。
I was unaware of the man's presence. 我没有察觉到那人在场。