ominous vs pleasant

ominous

adj
  • Specifically, giving indication of a coming ill; being an evil omen 

  • Of or pertaining to an omen or to omens; being or exhibiting an omen; significant. 

pleasant

adj
  • Giving pleasure; pleasing in manner. 

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