Even that age had not witnessed so portentous a display of impudence.

Was that why Paula was so elaborately disengaged and Aunt Lucile so portentous?

He felt so healthy and whole and the language was so portentous and ugly.

Mrs. Bell's face was so solemn, and her words so portentous, that Beatrice was really taken in.

The Protestants were for a moment in consternation in view of the gatherings of so portentous a storm.

The pause before this sentence had been so portentous of a wild and rebellious speech that the professor almost laughed now.

Now the knight's tone dropped to an ominous timbre so portentous that none of the Kagonesti reacted to his categorization of them.

Little Milton was a typical English village, nestling at the foot of the hills whose higher slopes now concealed so portentous a secret.

One would suppose that the little abbe has come to invite his mother to a confession of her sins, so portentous is his demeanor.