excursive
01
散漫な, 脱線しがちな
(of a lecture, writing, etc.) likely to wander off the main topic in a confusing and incomprehensible way
例
His excursive lecture included many unrelated anecdotes that made it hard to follow the main point.
彼の脱線した講義には、多くの無関係な逸話が含まれており、要点を追うのが難しかった。
