recalcitrant vs unhelpful

recalcitrant

adj
  • Unwilling to cooperate socially. 

  • Not viable for an extended period; damaged by drying or freezing. 

  • Difficult to deal with or to operate. 

  • Marked by a stubborn unwillingness to obey authority. 

noun
  • A person who is recalcitrant. 

unhelpful

adj
  • Not providing help or assistance; not helpful. 

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