heavyweight vs mentionable

heavyweight

adj
  • Important or impressive. 

  • Being a leader in one's field. 

  • Being relatively heavy. 

  • Of the heavyweight boxing (or similar) division. 

noun
  • A similar division and contestant in other sports. 

  • A very large, heavy, or impressive person. 

  • The professional boxing weight class for boxers weighing more than 190 pounds; a boxer in that division. 

mentionable

adj
  • Important or worthy of note. 

  • Suitable to be openly talked about, or mentioned; not taboo. 

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