comforting vs frightful

comforting

noun

  • The act of giving comfort. 

adj

  • Giving comfort. 

frightful

adv

  • Frightfully; very. 

adj

  • Unpleasant, dreadful, awful (also used as an intensifier). 

  • Genuinely horrific, awful, or alarming. 

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