suddenly, without any planning and without considering the effects your actions may have: một cách bất thình lình, không có kế hoạch và cũng không cần quan tâm đến những hậu quả mà hành động của bạn có thể gây ra (nghĩa: hấp tấp, bốc đồng)
At the age of 17, he impulsively decided to leave school.
As a child, she was fearless and often acted impulsively.
Then she impulsively called my aunt to confront her and the aunt had the audacity to immediately delete the entire thing as they were talking while explaining that it was just a joke.