rash or reckless(in conduct or speech)
放诞
To be reckless and unrestrained
骜放不羁
a reckless waste of things
暴殄天物
rash-extinction test
红疹消退试验
was convicted of reckless driving
被裁定鲁莽驾驶罪成
rash-extinction phenomenon
红疹消退现象
rash-extinction test letter
快速血清淀粉酶试验
reckless issuing of banknotes
赤字发行
reckless advertising
大肆宣传
be bold and reckless
胆大妄为
Brave but not reckless
胆大心细