1. The attribute of having a strong offensive smell
   "The foulness of the garbage dump was overwhelming";
   - malodorousness, stinkiness, rankness, fetidness
    
2. Disgusting wickedness and immorality
   "mouths which speak such foulness must be cleansed"; "he understood the foulness of sin"; "his display of foulness deserved severe punishment"
    
3. A state characterized by foul or disgusting dirt and refuse
   "The foulness of the polluted river was evident from its smell";
   - filth, filthiness, nastiness
    
4. (of weather) the badness of the weather
   "they were wearied with the foulness of the weather"

Type of: aroma, badness, dark, darkness, odor [US], odour [Brit, Cdn], olfactory property, scent, severeness [rare], severity, smell, unsanitariness, wickedness

Encyclopedia: Foulness