smutty vs uncleanly

smutty

adj
  • Soiled with smut; blackened, dirty. 

  • Affected with the smut fungus. 

  • Obscene, indecent. 

verb
  • To make dirty; to soil. 

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 smutty and uncleanly occurred in a corpus of books? (source: Google Ngram Viewer )