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English definition of “rash”

rash

adjective     /ræʃ/
C2 careless or unwise, without thought for what might happen or result: That was a rash decision - you didn't think about the costs involved. [+ to infinitive] I think it was a bit rash of them to get married when they'd only known each other for a few weeks.Doing things without fear or proper thought rashly     /ˈræʃ.li/ adverb Doing things without fear or proper thought rashness     /ˈræʃ.nəs/ noun [U] In a moment of rashness, I agreed to do a parachute jump for charity.Doing things without fear or proper thought
(Definition of rash adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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