pushover vs unobtainable

pushover

noun
  • Someone who is easily swayed or influenced to change his/her mind or comply. 

  • Something that is easy to do or accomplish; an easy task. 

  • Someone who lets him/herself be picked or bullied on without defending or standing up for him/herself. 

unobtainable

adj
  • Unable to be obtained: not able to be acquired or reached. 

noun
  • Someone or something that cannot be obtained. 

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