digressive
1. [ adjective ] of superficial relevance if any
Synonyms: tangential
Examples:

"a digressive allusion to the day of the week" "a tangential remark

Related terms: irrelevant
2. [ adjective ] (of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects
Synonyms: excursive rambling discursive
Examples:

"amusingly digressive with satirical thrusts at women's fashions" "a rambling discursive book" "his excursive remarks" "a rambling speech"

Related terms: indirect
Similar spelling:   digress
  degressive
  digression
  disgorge
  discursive
  disgorgement