odd fish vs unoriginal

odd fish

noun
  • An unusual thing or eccentric person. 

unoriginal

noun
  • A person or work that does not exhibit originality. 

adj
  • Not being the first or earliest version of something, not original. 

  • Lacking originality. 

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