matchless vs superb

matchless

adj
  • Without the use of matches for ignition. 

  • Having no mate. 

  • Having no match; without equal. 

superb

adj
  • First-rate; of the highest quality; exceptionally good. 

  • Grand; magnificent; august; stately. 

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