Impetuously (6)
I believe the answer is:
rashly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">impetuously</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rashly that I've seen before include "Without caution" , "In intemperate and injudicious manner" , "in reckless fashion" , "In a hasty and foolhardy manner" , "Recklessly" .)