one hundred percent vs thoroughly

one hundred percent

adv
  • Totally, completely. 

adj
  • Complete, entire, whole, perfect. 

  • Completely sure. 

  • Used other than figuratively or idiomatically: see one hundred, percent. 

  • Well, good, okay. 

thoroughly

adv
  • In a thorough or complete manner. 

How often have the words one hundred percent and thoroughly occurred in a corpus of books? (source: Google Ngram Viewer )