inappropo vs unequal

inappropo

adj
  • Not apropos. 

  • Inappropriate. 

unequal

adj
  • Not the same. 

  • Out of balance. 

  • Inadequate; insufficiently capable or qualified. 

  • Erratic, inconsistent. 

noun
  • One who is not an equal. 

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