digression

This term describes a detour in thought or conversation that leads away from the primary topic. It often carries a slightly negative or critical connotation, suggesting a lack of focus or a waste of time, though it can be used neutrally to describe a stylistic choice in storytelling or academic writing.

As a countable noun, it refers to a specific instance of wandering off-topic. While the act of digressing is a process, the digression itself is the resulting piece of irrelevant or tangential content.