Synonyms and related words :
abusive, adverse, bad, bad for, baleful, baneful, calumnious, contaminated, contemptuous, corroding, corrosive, corrupting, corruptive, counterproductive, damaging, deadly, defamatory, deleterious, deprecatory, derogatory, destructive, detrimental, disadvantageous, disparaging, disserviceable, distressing, eroding, erosive, evil, foul, harmful, harsh, hurtful, insalubrious, insanitary, insulting, lethal, malefic, malevolent, malign, malignant, mischievous, morbific, noisome, noxious, offensive, ominous, pathogenic, peccant, pernicious, pestiferous, poisonous, polluted, prejudicial, ruinous, scandalous, scatheful, scornful, scurrilous, septic, slanderous, tainted, toxic, unadvantageous, unfavorable, unhealthful, unhealthy, unhygienic, unprofitable, unrewarding, unsanitary, unwholesome, useless, venenate, veneniferous, venenous, venomous, vicious, virulent, worthless