strait-laced vs unconventional

strait-laced

adj

  • Bound with stays. 

unconventional

noun

  • Something or someone that is unconventional. 

adj

  • Not adhering to convention or accepted standards 

  • Atypical 

  • Out of the ordinary 

How often have the words strait-laced and unconventional occurred in a corpus of books? (source: Google Ngram Viewer )