unwarranted vs voidable

unwarranted

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

  • Unjustified, inappropriate or undeserved. 

voidable

adj
  • capable of being voided or made void. 

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