damaging (adj.)
- bad
- baleful
- baneful
- corrosive
- corrupting
- corruptive
- counterproductive
- deadly
- deleterious
- detrimental
- disadvantageous
- distressing
- erosive
- evil
- harmful
- hurtful
- injurious
- lethal
- malefic
- malevolent
- malign
- malignant
- mischievous
- noisome
- noxious
- ominous
- pernicious
- poisonous
- prejudicial
- toxic
- venomous
- vicious
- virulent