portentously

Adverb

Meaning

in a portentous manner

Source: WordNet

Synonyms

consequentially evil sinister grim pompous solemnly ominous bombastic prophetically portentous inauspicious wonderfully stilted auspiciously cannily
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Antonyms

modestly calmly carelessly irrationally impulsively foolishly
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Examples

portentously, the engines began to roll Source: Internet

Close letter words and terms

portentive portentosity portentous portentousness porteous porter