excursive (
http://definr.com/excursive)
adj : (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" [syn:
digressive,
discursive,
rambling]