irregular vs zombie

irregular

noun
  • One who does not regularly attend a venue. 

  • A soldier who is not a member of an official military force and who may not use regular army tactics. 

adj
  • without symmetry, regularity, or uniformity 

  • rough 

  • not regular; having sides that are not equal or angles that are not equal 

  • whose faces are not all regular polygons (or are not equally inclined to each other) 

  • nonstandard; not conforming to rules or expectations 

  • not following the regular or expected patterns of inflection in a given language 

zombie

noun
  • An apathetic or slow-witted person. 

  • A cocktail of rum and fruit juices. 

  • A human being in a state of extreme mental exhaustion. 

  • Marijuana, or similar drugs. 

  • A conscripted member of the Canadian military during World War II who was assigned to home defence rather than to combat in Europe. 

  • A hypothetical being that is indistinguishable from a normal human being except in that it lacks conscious experience, qualia, or sentience. 

  • A person, usually undead, animated by unnatural forces (such as magic), with no soul or will of his/her own. 

  • A process or task which has terminated but has not been removed from the list of processes, typically because it has an unresponsive parent process. 

  • An information worker who has signed a nondisclosure agreement. 

  • A computer affected by malware which causes it to do whatever the attacker wants it to do without the user's knowledge. 

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