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
- (formal, disapproving) the fact of being very serious in a way that is intended to impress people synonym pomposity
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portentousness