discursive

Adjective

• (of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects
  • amusingly digressive with satirical thrusts at women's fashions among other things
    
  • a rambling discursive book
    
  • his excursive remarks
    
  • a rambling speech about this and that
    

• proceeding to a conclusion by reason or argument rather than intuition

Related words

• Synonyms: 
  digressive , excursive , rambling , dianoetic