noxious

adj

1. Harmful; injurious.

   “In the living state, the body is observed to […] reject what is noxious; [...]”

   “[...] many old sewers have been neglected and are in dire need of repair. If that repair does not come in time, the result is noxious and potentially hazardous.”

   “Immediately upon joining, Ms. Yaccarino had her work cut out for her. Mr. Musk quickly made changes that tore up much of the good will Twitter had with users, employees and advertisers, including changing speech policies that allowed noxious content to circulate on the platform. Many advertisers left.”