detrimental Synonyms

prejudicial damaging disadvantageous hurtful pernicious injurious destructive deleterious ruinous malign unfavorable toxic harmful poisonous noxious mischievous counterproductive catastrophic calamitous prejudicious adverse pestiferous pestilent pathologic pestilential nonmetallic nocent malignant mephitical metastatic negative neoplastic untoward nocuous noisome unhealthful unflattering unfavourable life-threatening adversarial il electronegative undesirable unwholesome wrong downside worst worse venenate unfortunate