An Encylopedia Britannica Company

portentous

1 ENTRIES FOUND:
portentous /poɚˈtɛntəs/ adjective
portentous
/poɚˈtɛntəs/
adjective
Britannica Dictionary definition of PORTENTOUS
[more portentous; most portentous]
formal + literary : giving a sign or warning that something usually bad or unpleasant is going to happen
formal + disapproving : trying to seem important, serious, or impressive : pompous

— portentously

adverb