such-and-such vs undistinguished

such-and-such

det

  • indefinite; some or other, not stated 

noun

  • A placeholder or generic thing. 

undistinguished

adj

  • Not distinguished: not having an air of distinction. 

  • Not distinguished: not marked by conspicuous qualities. 

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