Noxious

a.	1.
	1.	Hurtful; harmful; baneful; pernicious; injurious; destructive; unwholesome; insalubrious; as, noxious air, food, or climate; pernicious; corrupting to morals; as, noxious practices or examples. Too frequent an appearance in places of public resort is noxious to spiritual promotions. - Swift.
	2.	Guilty; criminal. Those who are noxious in the eye of the law. - Abp. Bramhall.

Adj.

1.

noxious - injurious to physical or mental health; "noxious chemical wastes"; "noxious ideas" Synonyms: harmful Antonyms: innocuous, harmless - not injurious to physical or mental health

abhorrent, abominable, bad, bad for, bad-smelling, baleful, baneful, barfy, base, beastly, below contempt, beneath contempt, bitchy, brackish, catching, cloying, communicable, contagious, contaminated, contemptible, corroding, corrosive, corrupting, corruptive, counterproductive, crude, cussed, deadly, deleterious, despicable, destructive, detestable, detrimental, disadvantageous, disgusting, disserviceable, distressing, envenomed, execrable, fecal, fetid, forbidding, foul, frowsty, frowy, frowzy, fulsome, funky, fusty, gamy, graveolent, gross, hateful, heinous, high, hurtful, icky, ignoble, ill-smelling, infectious, infective, iniquitous, injurious, insalubrious, insanitary, invidious, lethal, loathsome, maggoty, malefic, maleficent, malevolent, malicious, malign, malignant, malodorous, mawkish, mean, mephitic, miasmal, miasmatic, miasmic, mildewed, mildewy, mischievous, moldy, morbific, musty, nasty, nauseant, nauseating, nauseous, nidorous, noisome, objectionable, obnoxious, obscene, odious, odorous, offensive, olid, ominous, ornery, overripe, pathogenic, peccant, pernicious, pestiferous, pestilent, pestilential, polluted, prejudicial, putrid, rancid, rank, reasty, reasy, rebarbative, reechy, reeking, reeky, repellent, repugnant, repulsive, revolting, rotten, scatheful, septic, sickening, sickly, smellful, smelling, smelly, spoiled, stenchy, stinking, strong, stuffy, sulfurous, tainted, toxicant, toxiferous, unhealthful, unhealthy, unhygienic, unsanitary, unwholesome, venenate, veneniferous, venenous, venomous, vicious, vile, virulent, vomity, weevily, wicked, yucky