adj. reckless, impetuous, hasty; acting or done without due consideration.
Derivatives:
rashly adv. rashness n.
Etymology: ME, prob. f. OE raeligsc (unrecorded) f. Gmc
2.
n.
1 an eruption of the skin in spots or patches.
2 (usu. foll. by of) a sudden widespread phenomenon, esp. of something unwelcome (a rash of strikes).
Etymology: 18th c.: prob. rel. to OF ra(s)che eruptive sores, = It. raschia itch
Useful english dictionary. 2012.