Synonyms and related words :
bad, baleful, baneful, barfy, brackish, catching, cloying, communicable, contagious, corroding, corrosive, corrupting, corruptive, counterproductive, damaging, dangerous, deadly, defamatory, deleterious, destructive, detrimental, diabolical, disadvantageous, disserviceable, distressing, envenomed, evil, fatal, fetid, foul, fulsome, harmful, high, hurtful, icky, infectious, infective, injurious, lethal, maggoty, malefic, malevolent, malicious, malign, malignant, mawkish, mephitic, miasmal, miasmatic, miasmic, mischievous, mortal, nasty, nauseant, nauseating, nauseous, noisome, noxious, offensive, ominous, overripe, pernicious, pestiferous, pestilent, pestilential, poison, prejudicial, rancid, rank, rebarbative, rotten, scatheful, septic, sickening, slanderous, spoiled, stinking, toxic, toxicant, toxiferous, venenate, veneniferous, venenous, venomous, vicious, vile, virulent, vomity, weevily, yucky