caught on the hop vs unqualified

caught on the hop

adj
  • In a situation for which one is unprepared. 

  • In a situation of change, especially from a known to an unknown state. 

unqualified

adj
  • Not elaborated upon, or not accompanied by restrictions or qualification; undescribed. 

  • Outright; thorough; utter. 

  • Not qualified, ineligible, unfit for a position or task. 

How often have the words caught on the hop and unqualified occurred in a corpus of books? (source: Google Ngram Viewer )