borderline vs vital

borderline

verb
  • To border, or border on; to be physically close or conceptually akin to. 

noun
  • A boundary or accepted division; a border. 

  • An individual who has borderline personality disorder. 

adj
  • Showing bad taste. 

  • Nearly; not clearly on one side or the other of a border or boundary, ambiguous. 

  • Exhibiting borderline personality disorder. 

adv
  • Nearly; not entirely but nevertheless to a great extent. 

vital

adj
  • Invigorating or life-giving. 

  • Very important. 

  • Containing life; living. 

  • Necessary to continued existence. 

  • Necessary to the continuation of life; being the seat of life; being that on which life depends. 

  • Capable of living; in a state to live; viable. 

  • Relating to the recording of life events. 

  • Relating to, or characteristic of life. 

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