deadbeat vs free rider

deadbeat

noun
  • A lazy and/or irresponsible person who is often unemployed, often depending upon wealthy or otherwise financially independent people for support. 

  • A person who defaults on debts. 

adj
  • defaulting on one's debts 

  • having a damped needle that stops without oscillation 

  • lazy or irresponsible 

  • defeated or exhausted 

  • dead tired 

free rider

noun
  • Someone who obtains goods or services legally without paying. 

  • A worker at an open shop who is able to enjoy the benefits negotiated by a union without being a member of the union. 

  • One who obtains benefit from a public good without paying for it directly. 

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