unbelievably
adverb uk/ˌʌn.bɪˈliː.və.bli/ us/ˌʌn.bɪˈliː.və.bli/
令人难以置信地
in a way that is very surprising or difficult to believe
He works unbelievably hard. 他工作极其卖力。
It was still an unbelievably stupid thing to do. 要做的这件事仍然是愚蠢至极,令人难以置信。