squalor vs ugliness

squalor

noun
  • Filthiness and degradation, as from neglect or poverty 

ugliness

noun
  • Unpleasant behaviour. 

  • The condition of being ugly. 

  • An unsightly or frightful object. 

  • Everything that's realistic has some sort of ugliness in it. Even a flower is ugly when it wilts, a bird when it seeks its prey, the ocean when it becomes violent. Sharon Tate 

How often have the words squalor and ugliness occurred in a corpus of books? (source: Google Ngram Viewer )