inexpedient vs wrongheaded

inexpedient

adj
  • Not expedient; not tending to promote a purpose; not tending to the end desired; unsuitable to time and place 

wrongheaded

adj
  • Having an obstinately (persistently, stubbornly) perverse/erroneous opinion or judgement. 

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