5
unwholesome(adjective, harmful, injurious, damaging, destructive)
4
alarming(adjective, arouse bad emotions)
4
fell(adjective, harmful, injurious, damaging, deadly)
4
fiendish(adjective, evil)
4
macabre(adjective, awful, terrible, black, dreadful)
4
malefic(negative, harmful, threatening, injurious, damaging)
4
ugly(adjective, critical, forbidding, denunciatory)
4
unfavorable(adjective, harmful, threatening, menacing, ominous)
4
unfavourable
4
unfortunate(adjective, sad, sorrow, depression, woe)
4
unpromising(adjective, warning, threatening, unfavorable, ominous)
4
unpropitious(adjective, warning, threatening, menacing, unfavorable)
4
vindictive(adjective, mean, nasty, vicious, wicked)
3
angry(adjective, state, characteristic, anger, emotion)
3
antagonistic(adjective, malevolent)
3
apocalyptic(adjective, arouse bad emotions)
3
augural(adjective, awful, fear, black, horror)
3
bitter(adjective, mean, nasty, hateful, malicious)
3
catastrophic(adjective, harmful, injurious, damaging, deadly)
3
corrosive(adjective, malevolent)
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APASmart Define. (2016). baleful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/baleful/thesaurus/synonyms
ChicagoSmart Define. 2016. "baleful thesaurus" https://smartdefine.org/baleful/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, baleful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/baleful/thesaurus/synonyms>.
MLASmart Define. "baleful thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/baleful/thesaurus/synonyms>