1. the quality or state of being excessively talkative; a tendency to talk too much, often about trivial matters
Usage: uncountable noun; formal register

Examples

• Her garrulousness made it difficult for others to get a word in during meetings.
• The old man's garrulousness was endearing to some but exhausting to others.
• His garrulousness about trivial details often bored his listeners.
• She tried to control her garrulousness when speaking to her boss.
• The garrulousness of the tour guide provided more information than most visitors wanted.
• Despite his garrulousness, he rarely said anything of real importance.