hellacious vs hopeless

hellacious

adj
  • Remarkable, unbelievable, unusual. 

  • nasty, repellent. 

  • horrible, awful, hellish, agonizing 

hopeless

adj
  • Incurable. 

  • Giving no ground of hope; promising nothing desirable; desperate. 

  • Without talent, not skilled. 

  • Without hope; despairing; not expecting anything positive. 

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