blindfold vs directional

blindfold

noun
  • Something that obscures vision (literally or metaphorically). 

  • A covering, usually a bandage, for the eyes, blocking light to the eyes. 

adj
  • Having the eyes covered so as to obscure vision 

  • Thoughtless; reckless. 

verb
  • To cover the eyes, in order to make someone unable to see. 

  • To obscure understanding or comprehension. 

adv
  • With the eyes covered so as to obscure vision. 

directional

noun
  • Something that indicates direction, such as a vehicle's turn signal. 

adj
  • Indicating direction. 

  • Of or relating to guidance or help. 

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