slovenly vs unproper

slovenly

adj
  • Careless or negligent; sloppy. 

  • Having an untidy appearance; unkempt. 

  • Dirty, unwashed; disorderly. 

adv
  • In a slovenly manner. 

unproper

adj
  • Improper, not according with good standards of behaviour; indecent, indecorous. 

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