gnarly vs perfective

gnarly

adj
  • Excellent; attractive. 

  • Unpleasant, awful, ugly. 

  • Of music or a sound: harsh. 

  • Having or characterized by gnarls; gnarled. 

  • Dangerous; difficult. 

perfective

adj
  • Of, or relative to, the perfect tense or perfective aspect. 

noun
  • a perfective verb form 

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