251 entries under adjective topic. ×

61
threatening(person, mean, bad, wrong)
43
sinister(person, appearance, mean, bad)
31
menacing(person, unpleasant, awful, feelings)
27
inauspicious(miserable, significant, foreboding, unfortunate)
27
grim(person, appearance, sad, awful)
24
foreboding(person, appearance, mean, bad)
21
gloomy(hard, severe, obscure, dark)
20
portentous(exciting, foreboding, warn, luck)
19
forbidding(person, appearance, dark, unpleasant)
19
minatory(foreboding, menacing, threat)
16
fateful(significant, grave, foreboding, threatening)
15
unpropitious(mean, bad, wrong, evil)
14
baleful(warning, foreboding, threatening, doomed)
14
dangerous(unpleasant, heavy, cruel, horrible)
12
ugly(person, unpleasant, awful, heavy)
11
unfriendly(person, dark, negative, hostile)
11
perilous(heavy, gloomy, acute, major)
10
dark(upset, obscure, sad, unpleasant)
10
dire(miserable, wretched, foreboding, warn)
10
unlucky(negative, wretched, grave, foreboding)
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APASmart Define. (2016). ominous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ominous/thesaurus/synonyms
ChicagoSmart Define. 2016. "ominous thesaurus" https://smartdefine.org/ominous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, ominous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ominous/thesaurus/synonyms>.
MLASmart Define. "ominous thesaurus" 3 April 2016. Web. 25 September 2026. <https://smartdefine.org/ominous/thesaurus/synonyms>