digressive

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
    

• of superficial relevance if any
  • a digressive allusion to the day of the week
    
  • a tangential remark
    

Related words

• Synonyms: 
  discursive , excursive , rambling , tangential