dead-end vs dilemma

dead-end

noun
  • A position that offers no hope of progress. 

  • A road with no exit. 

adj
  • Going nowhere; blocked. 

verb
  • To come to a dead-end. 

dilemma

noun
  • A difficult circumstance or problem. 

  • A type of syllogism of the form "if A is true then B is true; if C is true then D is true; either A or C is true; therefore either B or D is true". 

  • A circumstance in which a choice must be made between two or more alternatives that seem equally undesirable. 

  • Offering to an opponent a choice between two (equally unfavorable) alternatives. 

How often have the words dead-end and dilemma occurred in a corpus of books? (source: Google Ngram Viewer )