squalid vs uncleanly

squalid

adj
  • Extremely dirty and unpleasant. 

  • Showing a contemptible lack of moral standards. 

noun
  • Any member of the family Squalidae of dogfish sharks. 

uncleanly

adj
  • Dirty, unhygienic, not clean. 

  • Not pure in a moral or religious sense. 

adv
  • not in a clean way; in an unclean way 

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