garrulous
Very talkative, especially about unimportant things.
Garrulous means excessively talkative, especially about unimportant things. A garrulous person talks and talks and talks, often about trivial matters, without noticing that others might want a turn or need to focus on something else.
Imagine trying to finish your homework while someone keeps chattering about every detail of their day: what they ate for breakfast, the funny cloud they saw, the song stuck in their head, and on and on. That's garrulous behavior. The word carries a hint of annoyance: it describes someone who talks too much without reading social cues, going beyond normal friendliness or conversation into tiresome territory.
You might encounter garrulous characters in books: the passenger on a train who won't stop talking, or the neighbor who corners you with endless stories when you're trying to leave. Being garrulous is different from being a good storyteller or an interesting conversationalist. Those people know when to pause, when to listen, and when their audience needs a break. A garrulous person just keeps talking, regardless of whether anyone is really listening.