awful vs unbelievingly

awful

adv
  • Very, extremely. 

  • Awfully; dreadfully; terribly. 

adj
  • Exceedingly great; usually applied intensively. 

  • Very bad. 

unbelievingly

adv
  • Synonym of incredibly 

  • In an unbelieving way. 

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