contagious vs ruinous

contagious

adj
  • Having a disease that can be transmitted to another person. 

  • Easily transmitted to others. 

  • Easily passed on to others. 

ruinous

adj
  • Causing ruin; destructive, calamitous 

  • Characterized by ruin; ruined; dilapidated; as, an edifice, bridge, or wall in a ruinous state. 

  • Extremely costly; so expensive as to cause financial ruin. 

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