fright vs unconcern

fright

noun
  • Someone strange, ugly or shocking, producing a feeling of alarm or aversion. 

  • A state of terror excited by the sudden appearance of danger; sudden and violent fear, usually of short duration; a sudden alarm. 

adj
  • frightened; afraid; affright 

unconcern

noun
  • Lack of interest or care; indifference or apathy. 

  • Freedom from worry or apprehensiveness; insouciance or nonchalance. 

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