disconcerted vs unnerved

disconcerted

adj
  • Self-consciously distressed. 

  • Frustrated and disarranged. 

  • Ruffled; upset and embarrassed. 

unnerved

adj
  • Deprived of courage, strength, confidence, self-control, etc. 

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