indirect vs routine

indirect

verb
  • To access by means of indirection; to dereference. 

noun
  • An indirect cost. 

  • An indirect radiator 

adj
  • Not of obvious or immediate cause, but as a secondary result 

  • Not focused straight at the target or subject, but by more subtle means 

  • Not involving the quickest, shortest, or most convenient path 

routine

noun
  • A course of action to be followed regularly; a standard procedure. 

  • A set piece of an entertainer's act. 

  • A set of normal procedures, often performed mechanically. 

  • A set of instructions designed to perform a specific task; a subroutine. 

adj
  • Ordinary with nothing to distinguish it from all the others. 

  • According to established procedure. 

  • Regular; habitual. 

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