EXCURSIVE
digressive, discursive, excursive, rambling
(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”
Source: WordNet® 3.1
Adjective
excursive (comparative more excursive, superlative most excursive)
Tending to digress.
Source: Wiktionary
Ex*cur"sive, a.
Definition: Prone to make excursions; wandering; roving; exploring; as, an
excursive fancy.
The course of excursive . . . understandings. I. Taylor.
– Ex*cur"sive*ly, adv.
– Ex*cur"sive*ness, , n.
Source: Webster’s Unabridged Dictionary 1913 Edition