completely vs incontrovertibly

completely

adv
  • In a complete manner 

  • To the fullest extent or degree; totally. 

incontrovertibly

adv
  • In an incontrovertible manner; in a manner not capable of being denied, challenged, or disputed. 

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