5
ill-starred(adjective, unfavorable, ominous, unpromising)
5
parlous(adjective, bad, heavy, risky, dangerous)
5
risky(adjective, bad, delicate, heavy, uncertain)
5
stormy(adjective, strong, severe, rough, intense)
5
sullen(adjective, mean, bad, wrong, evil)
5
treacherous(adjective, delicate, unpleasant, uncertain, horrible)
5
unfavourable
5
unlucky(adjective, negative, menacing, unfavorable, disapproving)
5
warning(noun, verb, adjective, warning, menacing)
4
abusive
4
atrocious(adjective, evil, obscure, dark, gloomy)
4
bleak
4
blustering(violent, wild, bitter, unrestrained, murky)
4
brewing(adjective, likely, possible, immediate, coming)
4
clouded
4
coercion(noun, force, pressure, compulsion, intimidation)
4
disturbing(verb, hard, severe, nasty, offensive)
4
frowning(adjective, evil, critical, mysterious, forbidding)
4
glum(adjective, evil, unpleasant, horrible, disagreeable)
4
grim
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APASmart Define. (2016). threatening thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/threatening/thesaurus/synonyms
ChicagoSmart Define. 2016. "threatening thesaurus" https://smartdefine.org/threatening/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, threatening thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/threatening/thesaurus/synonyms>.
MLASmart Define. "threatening thesaurus" 23 March 2016. Web. 21 September 2026. <https://smartdefine.org/threatening/thesaurus/synonyms>