off-the-wall vs unhappy

off-the-wall

adj

  • Wildly unconventional; bizarre; absurd. 

  • Of a person's behaviour: greatly inappropriate. 

unhappy

noun

  • An individual who is not happy. 

adj

  • Not happy; sad. 

  • Not satisfied; unsatisfied. 

How often have the words off-the-wall and unhappy occurred in a corpus of books? (source: Google Ngram Viewer )