胆大妄为

Explanation: Recklessly: mess, mess to do. Do bad things with impunity. 　　Usage: Joint type; as subject, predicate, adverbial; negative, suggesting recklessly do bad things 　　Source: Qing Li Baojia "Bureaucrats": "said he good at selling minerals, audacious, Qing Zhi get to pay the Ministry of Punishments Offences." 　　Examples: Said he was good at selling minerals, ~, Qingzhi Code Board of Punishments to take delivery. (Qing Li Baojia "Bureaucrats" fifty-third back) Thesaurus:  audacious in the extreme; with reckless daring, Wusuo scruple, Daringness Bao Shen, Just full of bile, Nothing be afraid of, Bold, such as bucket, not care a bean (s), to have plenty of guts Antonym Group:  A deep discharge thin, Cautious and conscientious, put a fire under a pile of faggots— a hidden danger, sit without approaching the stair way, feel like standing upon the edge of an abyss, tread on delicate ground, (literally) to walk on ice--cautious Pro Yuan, Carry out a deep thin, jitter, toward Less evening, pull sb's chestnut out of the fire, a blind man on a blind horse— — rushing headlong to disaster, a blind man on a blind horse— — rushing headlong to disaster, Jaws of death as the tiger's mouth Seize food, beard the lion in his den