reckless

Universal Words adjective showing a lack of care about danger and the possible results of your actions: He showed a reckless disregard for his own safety. * She was a good rider, but reckless. * He had always been reckless with money. * (BrE) to cause death by reckless driving recklessly adverb: He admitted driving recklessly. * She had fallen hopelessly and recklessly in love. recklessness noun [U]