Thesaurus.com
Dictionary.com
Showing results for ominous. Search instead for ominou.
Definitions

ominous

[om-uh-nuhs] / ˈɒm ə nəs /
ADJECTIVE
menacing, foreboding
Synonyms
STRONGEST
apocalyptic dangerous dark dire dismal gloomy grim haunting perilous portentous prophetic sinister threatening
WEAK
augural baleful baneful clouded direful doomed doomful fateful fearful forbidding hostile ill-boding ill-fated impending inauspicious inhospitable lowering malefic malificent malign minatory precursive premonitory presaging prescient suggestive unfriendly unlucky unpromising unpropitious
Antonyms
STRONGEST
bright cheerful encouraging good happy hopeful joyful light nice pleasant safe secure sunny
WEAK
auspicious lucky promising propitious

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

History suggests that might be an ominous sign.

From MarketWatch • Apr. 6, 2026

But if you thirst for a sober-minded investigation into this ominous tool — one with an approach that treats you like the intelligent being you are — you’ll have to wait for AI doc 2.0.

From Los Angeles Times • Mar. 27, 2026

Around this time last year, they started sending a more ominous message.

From The Wall Street Journal • Mar. 26, 2026

Would he even want to walk into such an ominous situation?

From BBC • Mar. 24, 2026

We hear an accusatory voice coming from above us, along with some urgent footsteps that create an ominous vibration.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.