The Collaborative International Dictionary of English v.0.48:
Rashly \Rash"ly\, adv. In a rash manner; with precipitation. [1913 Webster] He that doth anything rashly, must do it willingly; for he was free to deliberate or not. --L'Estrange. [1913 Webster]WordNet (r) 3.0 (2006):
rashly adv 1: in a hasty and foolhardy manner; "he fell headlong in love with his cousin" [syn: headlong, rashly]