freaky vs unsolvable

freaky

adj

  • Odd; bizarre; unusual. 

  • Sexually deviant. 

  • Scary; frightening. 

  • Resembling a freak. 

unsolvable

adj

  • Not solvable. 

noun

  • A problem that cannot be solved. 

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