Synonyms of portentous


1. portentous, prodigious, significant (vs. insignificant), important

usage: of momentous or ominous significance; "such a raised all my curiosity"- Herman Melville; "a prodigious vision"

2. fateful, foreboding(prenominal), portentous, prophetic (vs. unprophetic), prophetical

usage: ominously prophetic

3. grandiloquent, overblown, pompous, pontifical, portentous, pretentious (vs. unpretentious)

usage: puffed up with vanity; "a grandiloquent and boastful manner"; "overblown oratory"; "a pompous speech"; "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek

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Definition and meaning of portentous (Dictionary)