raving vs unthreatening

raving

adv

  • Incoherently 

noun

  • Wild, incoherent, or irrational talk. 

adj

  • Talking wildly. 

  • Causing excitement or wild praise. 

unthreatening

adj

  • Not threatening 

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