antibiotic vs unsanitary

antibiotic

noun
  • Any substance that can destroy or inhibit the growth of bacteria and similar microorganisms, generally transported by the lymphatic system. 

adj
  • Of or relating to antibiotics. 

unsanitary

adj
  • Not sanitary; unhealthy; dirty. 

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