doubtless vs presumedly

doubtless

adv
  • Without doubt; very probably, in all likelihood; doubtlessly. 

adj
  • Characterized by or experiencing no doubt at all, certain; undoubted; undoubting. 

presumedly

adv
  • In a way that is presumed; expectedly; presumably. 

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