baleful (adj.)
- apocalyptic
- bad
- baneful
- bitchy
- black
- boding
- corrosive
- corrupting
- corruptive
- counterproductive
- cussed
- damaging
- dark
- deadly
- deleterious
- detrimental
- dire
- direful
- disadvantageous
- distressing
- dreary
- evil
- fateful
- foreboding
- gloomy
- harmful
- hateful
- hurtful
- ill
- ill-fated
- ill-omened
- ill-starred
- inauspicious
- iniquitous
- injurious
- invidious
- lethal
- lowering
- malefic
- maleficent
- malevolent
- malicious
- malign
- malignant
- mean
- menacing
- mischievous
- nasty
- noisome
- noxious
- ominous
- ornery
- pernicious
- poisonous
- portentous
- prejudicial
- sinister
- somber
- threatening
- toxic
- unfavorable
- unfortunate
- unlucky
- unpromising
- unpropitious
- untoward
- venomous
- vicious
- virulent
- wicked
