10
unlucky(adjective, negative, wretched, grave, foreboding)
10
angry(adjective, state, characteristic, person, unpleasant)
9
minacious(adjective, threat)
9
unpromising(adjective, negative, foreboding, threatening, menacing)
9
spooky(adjective, frightening)
8
lowering(adjective, foreboding, menacing)
8
apocalyptic(adjective, significant, grave, foreboding, warn)
8
augural(adjective, characteristic, significant, foreboding, threatening)
8
baneful(adjective, grave, foreboding, threatening, warn)
8
direful(adjective, horrible, fearful, foreboding, warn)
8
hopeless(adjective, appearance, obscure, sad, dark)
8
ill-fated(adjective, person, feelings, miserable, wretched)
8
ill-omened(adjective, warning, threatening, unfavorable, unpromising)
8
impending(adjective, dismal, incomplete, foreboding, imminent)
8
malevolent(adjective, person, mean, bad, wrong)
8
malicious(adjective, person, cruel, unkind, upsetting)
8
prophetic(adjective, hard, severe, offensive, dismal)
8
stern(adjective, person, dark, terrible, hostile)
8
unfortunate(adjective, awful, terrible, miserable, negative)
7
ill(adjective, bad, evil, negative, unfavorable)
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APASmart Define. (2016). ominous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ominous/thesaurus/synonyms
ChicagoSmart Define. 2016. "ominous thesaurus" https://smartdefine.org/ominous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, ominous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ominous/thesaurus/synonyms>.
MLASmart Define. "ominous thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/ominous/thesaurus/synonyms>