The term 'acted impulsively' can be described by the crossword solutions of 'leapt' (5 letters), 'leaped' (6 letters), 'LEAP' (4 letters), 'BLURT' (5 letters) and 'blurts' (6 letters). These words all suggest a sudden, unplanned action, which is what it means to act impulsively. Leapt, leaped and LEAP all refer to a sudden jump or movement, while BLURT and blurts refer to an unexpected outburst of words. All of these words together suggest that someone acted without thinking, in a spontaneous manner.