harmful or injurious to health or physical well-being morally harmful
We were all sent home after noxious gases filled our office building. The noxious chemicals caused burning to the skin. He passed out after inhaling noxious fumes.
It is possible that you are thinking of the word noxious, meaning extremely bad or toxic.
noxious fumes are dangerous and can kill us
No it is an adjective.
Noxious
skunk in Latin is mephitis meaning noxious vapour
The root word of "obnoxious" is "nox," which comes from Latin meaning "night."
Noxious weed is the umbrella name for a group of weeds that are hazardous to crops, humans and/or habitats. For a list of many of the plants that are classified as noxious weeds, please refer to the related link.
Virus is Latin for poisonous or other noxious substances.
There are some noxious people who clutter up this service by posting their homework questions that they could very well figure out for themselves with a tiny bit of effort.
fragrance ; noxious ; ephemeral ; nuance ; pulchritudinous ; olfactory.
Noxious and obnoxious all come from noxa.