Definition of noxiousness in US English:

noxiousness

noun

  • See noxious

    • ‘While that fresh air (called make-up air in HVAC circles) is coming in, thirty years of advancement in home design and energy efficiency is leaking out - just so you can rid yourself of a few cubic feet of noxiousness.’
    • ‘The Nobel Prize winner for Medicine Charles Richet attributed this silence to the disgust that arises from noxiousness and the lack of usefulness of human waste.’
    • ‘Second, the obvious grounds on which to terminate Churchill are not the stupidity and the noxiousness of his ideas, but his fraudulent claim to be something he isn't.’
    • ‘Unfortunately, the sort of assistance given by Jupiter isn't likely to remove much noxiousness.’