matter-of-fact vs significant

matter-of-fact

adj
  • lacking emotion or colour 

  • of, or relating to facts only; literal, realistic 

  • straightforward, blunt, frank; treating the situation as normal; not embarrassed, coy, or dramatic. 

significant

noun
  • That which has significance; a sign; a token; a symbol. 

adj
  • Reasonably large in number or amount. 

  • Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related). 

  • Having a covert or hidden meaning. 

  • Having a noticeable or major effect. 

  • Signifying something; carrying meaning. 

How often have the words matter-of-fact and significant occurred in a corpus of books? (source: Google Ngram Viewer )