extreme vs incessive

extreme

adj
  • In the greatest or highest degree; intense. 

  • Of a place, the most remote, farthest or outermost. 

  • Drastic, or of great severity. 

  • Of sports, difficult or dangerous; performed in a hazardous environment. 

  • Excessive, or far beyond the norm. 

noun
  • A drastic expedient. 

  • The greatest or utmost point, degree or condition. 

  • Either of the two numbers at the ends of a proportion, as 1 and 6 in 1:2=3:6. 

  • Each of the things at opposite ends of a range or scale. 

incessive

adj
  • Intense and active. 

  • Insightful; deep and succinct; incisive. 

  • Intruding inward. 

  • Tending to incite or inflame; incensive. 

  • Synonym of inessive 

  • Fierce; cruel and aggressive. 

  • Continual or successive; unceasing. 

  • Critical and accurate; incisive. 

  • Included. 

  • Durative. 

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