viable vs winnable

viable

adj

  • Capable of working successfully 

  • Able to live on its own (as for a newborn). 

  • Able to be done, possible, practicable, feasible. 

  • Able to live and develop. 

noun

  • An organism that is able to live and develop. 

winnable

adj

  • able to be won or achieved 

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