downbeat vs unjoyful

downbeat

adj
  • Sad or pessimistic. 

  • Cautiously optimistic. 

noun
  • The accented beat at the beginning of a bar (indicated by a conductor with a downward stroke). 

unjoyful

adj
  • Not joyful; unhappy; joyless; sad. 

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