foul-mouthed vs indecent

foul-mouthed

adj
  • Tending to use obscene or offensive language. 

indecent

adj
  • Offensive to good taste. 

  • Generally unacceptable for public broadcasting but not legally obscene. 

  • Not in keeping with conventional moral values; improper, immodest, or unseemly. 

How often have the words foul-mouthed and indecent occurred in a corpus of books? (source: Google Ngram Viewer )