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