portentously

adverb

No English definition recorded for this entry.

Pronunciation: /pɔː(ɹ)ˈtɛn.təs.li/

Etymology: Etymology tree English portentous Middle English -ly English -ly English portentously From portentous + -ly.

In an ominous manner.
“The cold light of the moon touched every face with unnatural paleness; and the silence was unbroken and portentously profound.”
“At that moment a long, scraggy individual in a checked suit poked his head into the bar, looked around portentously, whistled mysteriously to my informant, and jerked his thumb and head in the direction of the door.”
In a pompous manner.