freewheeling vs happy-go-lucky

freewheeling

adj

  • Unbounded by rules or conventions; unrestrained. 

happy-go-lucky

adj

  • carefree or untroubled 

noun

  • One who is happy-go-lucky. 

How often have the words freewheeling and happy-go-lucky occurred in a corpus of books? (source: Google Ngram Viewer )