diffuse vs discursive

diffuse

adj
  • Wordy; verbose. 

  • Everywhere or throughout everything; not focused or concentrated. 

verb
  • To be spread over or through as in air, water, or other matter, especially by fluid motion or passive means. 

  • To spread over or through as in air, water, or other matter, especially by fluid motion or passive means. 

discursive

adj
  • Tending to digress from the main point; rambling. 

  • Using reason and argument rather than intuition. 

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