- of the nature of a portent; momentous.
- ominously significant or indicative: a portentous defeat.
- marvelous; amazing; prodigious.
Origin of portentous
SynonymsSee more synonyms for portentous on Thesaurus.com
Examples from the Web for portentously
And then all this gets underlined and italicized by a portentously romantic score.Is Lindsay Lohan a Work Of Art?
June 13, 2012
Portentously, the opposition consisted of communists, liberals, fascists, and a well-off middle class.Leslie H. Gelb on a World in Crisis—and What Obama Should Do
Leslie H. Gelb
December 14, 2011
"There's a man you don't want to have much to do with," she said portentously.Lucy Maud Montgomery Short Stories, 1909 to 1922
Lucy Maud Montgomery
It was so portentously produced that her ladyship had somehow to meet it.Some Short Stories
No one could have been so portentously sagacious as he looked.John Forster
Percy Hethrington Fitzgerald
This, sir, he said portentously, is the language of the Derby.Lord Randolph Churchill
Winston Spencer Churchill
But the punch which succeeded was of excellent quality, and portentously strong.The Surgeon's Daughter
Sir Walter Scott
- of momentous or ominous significance
- miraculous, amazing, or awe-inspiring; prodigious
- self-important or pompous
Word Origin and History for portentously
1540s, from Latin portentosus "monstrous, marvelous, threatening," from portentem "portent" (see portend). Related: Portentously.