critically vs seriously

critically

adv
  • With close discernment; accurately; exactly. 

  • In terms of critique, review, of or by critics 

  • At a crisis or critical time; in a situation, place, or condition of decisive consequence. 

  • In a critical manner; with, or in terms of, criticism. 

  • Requiring immediate attention; likely to cause a collapse. 

seriously

adv
  • In a serious or literal manner. 

  • Used to attempt to introduce a serious point in a less serious conversation. 

  • In an extreme or major way; majorly 

  • Used to call back to a previous point, in disbelief or for emphasis. 

  • Gravely; deeply; very much. 

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