digression

(n) a message that departs from the main subject divagation, excursus, aside, parenthesis,
(n) a turning aside (of your course or attention or concern)
- a diversion from the main highway
- a digression into irrelevant details
- a deflection from his goal
divagation, diversion, deflexion, deflection, deviation,
(n) wandering from the main path of a journey excursion,

divagation excursus aside parenthesis diversion deflexion deflection deviation excursion

digressive