neat as a pin vs slovenly

neat as a pin

adj

  • (simile) Very neat and tidy. 

slovenly

adv

  • In a slovenly manner. 

adj

  • Having an untidy appearance; unkempt. 

  • Careless or negligent; sloppy. 

  • Dirty, unwashed; disorderly. 

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