portentousness
noun/pɔːˈtentəsnəs/
/pɔːrˈtentəsnəs/
[uncountable]- (literary) the fact of being important as a sign or a warning of something that is going to happen in the future, especially when it is something unpleasant
预示（坏事）的；先兆的 - (formal, disapproving) the fact of being very serious in a way that is intended to impress people
煞有介事的；装腔作势的；装模作样的