sleazy vs unthorough

sleazy

adj
  • Marked by low quality; inferior; inadequate. 

  • Untrustworthy. 

  • Raunchy or perverted in nature; tastelessly sexual. 

unthorough

adj
  • Not thorough. 

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