skippable vs unwarranted

skippable

adj
  • Capable of being skipped. 

  • Not worth watching or doing; missable. 

unwarranted

adj
  • Not warranted; being without warrant, authority, or guaranty; unwarrantable. 

  • Unjustified, inappropriate or undeserved. 

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