From Longman Dictionary of Contemporary Englishill-consideredˌill-conˈsidered adjective CARELESSdecisions, actions, ideas etc that are ill-considered have not been carefully thought about The tax reforms are ill-considered.
Examples from the Corpus
ill-considered• When costs are discounted or ignored, these organizations can bask in the short-term benefits that their ill-considered activities often afford.• This may arise as a consequence of an unsuccessful or ill-considered approach to a potential target.• an ill-considered business venture• Despite the mauling that Chris Patten and Co. are going to receive, they can force through this ill-considered legislation.• This, in the light of Omally's experience, was an ill-considered move upon his part.• This is no argument to make ill-considered moves.• When it's ill-conceived, ill-considered or based on incomplete information, the Profitboss won't criticize the critic.• There was never an ill-considered remark made about either of them.• Large corporations are rushing ahead with ill-considered techniques. 