insistent vs occurrent

insistent

adj
  • Extorting attention or notice; coercively staring or prominent; vivid; intense. 

  • Urgent in dwelling upon anything; persistent in urging or maintaining. 

  • Standing on end: specifically said of the hind toe of a bird when its base is inserted so high on the shank that only its tip touches the ground: correlated with incumbent. 

occurrent

adj
  • Pertaining to occurrence; having to do with an occurrence. 

  • Current, actual, occurring. 

noun
  • An event, something that occurs. 

  • One who comes to meet another. 

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