commendable vs obnoxious

commendable

adj
  • Worthy of commendation; deserving praise; admirable, creditable, or meritorious. 

obnoxious

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

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

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