noxiousness
nounUK /ˈnɒkʃəsnəs/
US /ˈnɑːkʃəsnəs/
The quality of being harmful or very unpleasant.
The noxiousness of the fumes forced everyone to leave the building.
OTHER MEANINGS
2. The state of being physically harmful to health.
Doctors warned about the noxiousness of the chemicals in the water.
3. The quality of being very offensive or disgusting to the senses.
The noxiousness of the smell made her cover her nose.
4. The tendency to be morally corrupting or harmful.
Critics debated the noxiousness of the ideas spread online.