粗心浮气

Explanation: Float: impetuous. Describe people do not care, do not calm. 　　Usage: Joint type; as the predicate attribute; describe the act irritable not careful 　　Source: Jiuyuan Song "Festival Lv Bogong text": "year over year since the day feel less different, more taste much worse view of provinces, plus fine catch-dimensional, in former times floating past careless air, only e To participate, not at full pay justice." 　　Examples: "Sunbeam" in all of the young, often ~, proudly Lingren, inevitable. ★ Lu Xun's "Letters To Zhenduo" Thesaurus:  So so., go off at half cock, careless; negligent, Thick floating, coarse Flighty and impatient air, railroading