Definition of portentous
English to English adjective - Of the nature of a portent; containing portents; foreshadowing, esp. foreshadowing ill; ominous.
source: Webster 1913 adjective satellite - of momentous or ominous significance
Such a portentous...monster raised all my curiosity.
A prodigious vision.
source: WordNet 3.0 - ominously prophetic
source: WordNet 3.0 - puffed up with vanity
A grandiloquent and boastful manner.
Overblown oratory.
A pompous speech.
Pseudo-scientific gobbledygook and pontifical hooey.
source: WordNet 3.0
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