edgy vs unflappable

edgy

adj
  • Cool by virtue of being tough, dark, or badass. 

  • Having some of the forms, such as drapery or the like, too sharply defined. 

  • On the edge between acceptable and offensive; pushing the boundaries of good taste; risqué. 

  • Nervous, apprehensive. 

  • Exhibiting behavior that is disconcerting or alarming, sometimes in an effort to impress or to troll others. 

  • Creatively challenging; cutting edge; leading edge. 

  • Sharp; having prominent edges. 

unflappable

adj
  • Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily. 

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