inexpressible vs obnoxious

inexpressible

adj
  • Unable to be expressed; not able to be put into words. 

obnoxious

adj
  • Exposed or vulnerable to something, especially harm or injury. 

  • Extremely offensive or unpleasant; very annoying, contemptible, or odious. 

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