noxious
I
adjective
adverse, bad, baleful, baneful, brutal, causing danger, contaminated, corrupting, damaging, dangerous, deleterious, destructive, detrimental, disadvantageous, fatal, fraught with danger, harmful, hazardous, hurtful, impairing, injurious, insalubrious, internecine, jeopardous, lethal, malefic, malicious, malignant, menacing, mischievous, nocent, noisome, offensive, perilous, pernicious, pestiferous, pestilent, poisonous, precarious, risky, ruinous, scatheful, threatening, toxic, unfavorable, unhealthy, unsafe, unwholesome, vicious, virulent
II
index
bad (inferior), contemptible, deadly, deleterious, detrimental, fatal, harmful, harsh, inimical, insalubrious, lethal, malignant, objectionable, obnoxious, offensive (offending), peccant (unhealthy), pernicious, pestilent, repulsive, sinister, tainted (contaminated), toxic, unfavorable, virulent
Burton's Legal Thesaurus.
William C. Burton.
2006