head-on vs unqualified

head-on

adj
  • Direct, abrupt, blunt or unequivocal; not prevaricating. 

  • Of a collision, from the front or in the direction of motion. 

adv
  • With the front of a vehicle. 

  • With direct confrontation. 

noun
  • A collision from the front. 

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 head-on and unqualified occurred in a corpus of books? (source: Google Ngram Viewer )