obnoxious vs repellent

obnoxious

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

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

repellent

adj
  • Resistant or impervious to something. 

  • Repulsive, inspiring aversion. 

  • Tending or able to repel; driving back. 

noun
  • Someone who repels. 

  • A substance used to repel insects, other pests, or dangerous animals. 

  • A substance or treatment for a fabric etc to make it impervious to something. 

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