Definition of ominous
: being or exhibiting an omen : portentous
especially
: foreboding or foreshadowing evil : inauspicious
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
The Exceptions Quiz III
-
- Which of these words does not mean "nonsense"?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share ominous
Time Traveler for ominous
The first known use of ominous was in 1580
See more words from the same year