prejudicial (adj.)

• bad
• baleful
• baneful
• corrosive
• corrupting
• corruptive
• counterproductive
• damaging
• deadly
• deleterious
• detrimental
• differential
• disadvantageous
• discriminative
• distressing
• evil
• harmful
• hurtful
• inimical
• injurious
• lethal
• malefic
• malevolent
• malign
• malignant
• mischievous
• noisome
• noxious
• ominous
• pernicious
• poisonous
• preconceived
• predetermined
• predisposed
• toxic
• unfavorable
• unprofitable
• unrewarding
• useless
• venomous
• vicious
• virulent
• worthless