ominous vs reassuring

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. 

reassuring

adj
  • That reassures; causing comfort or confidence. 

noun
  • reassurance 

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