noxious

1. Injurious to physical or mental health (synset 301615595)
   "noxious chemical wastes"; "noxious ideas"
   also:

   • harmful - causing or capable of causing harm
   • toxic - of or relating to or caused by a toxin or poison
   • unwholesome - detrimental to physical or moral well-being
   similar to:

   • baneful, deadly, pernicious, pestilent - exceedingly harmful
   • corrupting, degrading - harmful to the mind or morals
   • vesicant, vesicatory - causing blisters

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