ill-timed vs unappropriate

ill-timed

adj
  • Occurring at an unfavourable or inappropriate time; untimely 

unappropriate

adj
  • Inappropriate; unsuitable. 

verb
  • To take from private possession; to restore to the possession or right of all. 

How often have the words ill-timed and unappropriate occurred in a corpus of books? (source: Google Ngram Viewer )