indifference vs urgency

indifference

noun
  • Unconcerned nonchalance. 

  • The state of being indifferent. 

  • Unbiased impartiality. 

  • Unemotional apathy. 

  • Self-identity defined through the negation of difference, non-difference. 

  • A lack of enthusiasm. 

urgency

noun
  • The quality or condition of being urgent. 

  • Insistence, pressure, urge. 

  • A sudden and compelling need to urinate that is difficult to defer, associated with conditions such as urinary tract infections and overactive bladder. 

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