deleterious Synonyms

injurious hurtful noisome noxious unhealthful pernicious pestiferous pestilent pestilential nocuous nocent negative mortal morbific mischievous mephitical malignant malign poisonous prejudicial ruining unfavourable prejudicious life-threatening unhealthy unwholesome wrackful virulent vicious venomous venenate unfortunate unfavorable toxicant toxic scathful sacrificial ruinous malicious maleficial malefic degenerative deathly deadly dangerous damaging corruptive corrupting catastrophic cataclysmic