3
predictive
3
prognostic(characteristic, significant, telling, revealing, suggestive)
3
risky(adjective, dangerous)
3
somber(appearance, terrible, hopeless)
3
terrible(adjective, appearance, evil, unpleasant, awful)
3
terrorizing(adjective, negative emotions)
3
unearthly
3
wretched(adjective, unpleasant, horrible, disagreeable, dreadful)
2
appalling
2
auspicious(characteristic, significant, prediction, telling, revealing)
2
awful
2
cheerless(adjective, sad, depressing)
2
critical(adjective, heavy, negative, significant, hostile)
2
damaging(cruel, negative, unkind, upsetting, disapproving)
2
deleterious(cruel, unkind, upsetting, threatening, menacing)
2
despicable(adjective, unpleasant, horrible, disagreeable, dreadful)
2
detrimental(cruel, unkind, upsetting)
2
disagreeable(adjective, person, hard, severe, dark)
2
discomforting(hard, severe, offensive, distressing, upsetting)
2
doomful(adjective, foreboding, menacing)
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APASmart Define. (2016). ominous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ominous/thesaurus/synonyms
ChicagoSmart Define. 2016. "ominous thesaurus" https://smartdefine.org/ominous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, ominous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ominous/thesaurus/synonyms>.
MLASmart Define. "ominous thesaurus" 3 April 2016. Web. 26 September 2026. <https://smartdefine.org/ominous/thesaurus/synonyms>