checked vs unbridled

checked

adj
  • Verified or validated in some way. 

  • Delivered to the airline (or train line, ferry, etc.) during check-in to be stored in an inaccessible area to the passenger (the hold) during the flight (or other journey). 

  • Of consonants, glottalized. 

  • Having a pattern of checks; checkered. 

  • Of syllables, having a coda. 

unbridled

adj
  • Not fitted with a bridle. 

  • Without restraint or limit. 

verb
  • simple past tense of unbridle 

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