imperative vs indifferent

imperative

adj
  • Of, or relating to the imperative mood. 

  • Having semantics that incorporates mutable variables. 

  • Expressing a command; authoritatively or absolutely directive. 

  • Essential; crucial; extremely important. 

noun
  • A verb in imperative mood. 

  • The grammatical mood expressing an order (see jussive). In English, the imperative form of a verb is the same as that of the bare infinitive. 

  • An essential action, a must: something which is imperative. 

indifferent

adj
  • Indicating or reflecting a lack of concern or care. 

  • Ambivalent; unconcerned; uninterested, apathetic. 

  • Having no preference. 

  • Mediocre (usually used negatively in modern usage). 

  • Not making a difference; without significance or importance. 

  • Being in the state of neutral equilibrium. 

noun
  • A person who is indifferent or apathetic. 

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