[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]轻率的；不计后果的；鲁莽的；无所顾忌的 If you say that someone is reckless, you mean that they act in a way which shows that they do not care about danger or the effect their behaviour will have on other people.
She loved to ride； on horseback, she was reckless and utterly without fear...
她喜欢骑马；在马背上，她纵横驰骋，毫无畏惧。
He is charged with causing death by reckless driving.
他被控危险驾驶致人死亡。
recklessly
He was leaning recklessly out of the unshuttered window...
他冒冒失失地从没有遮拦的窗户探出身去。
A congressional report charges that federal safety laws were recklessly violated.
一份国会报告指责联邦安全法被公然违反。
recklessness
He felt a surge of recklessness...
他感觉到一阵不顾一切的冲动。
The headstrong recklessness of youth may be fine in some areas, but not behind the wheel of a car.
年轻人在一些方面任性鲁莽一点也许没什么大不了，但是在驾车时可不行。
Oxford
reck·less/ˈrekləs; NAmEˈrekləs/adjectiveshowing a lack of care about danger and the possible results of your actions 鲁莽的；不计后果的；无所顾忌的SYN
rash
◆He showed a reckless disregard forhis own safety. 他对个人安危全然无所顾忌。◆She was a good rider, but reckless.她是个好骑手，但太鲁莽。◆He had always been reckless with money.他花钱总是大手大脚。◆to cause death by reckless driving鲁莽驾驶造成死亡▶reck·less·ly/ˈrekləsli; NAmEˈrekləsli/adverb◆He admitted driving recklessly.他承认鲁莽驾驶。reck·less·ness/ˈrekləsnəs; NAmEˈrekləsnəs/noun[uncountable ]reck·less/ˈrekləs; NAmEˈrekləs/reck·less·ly/ˈrekləsli; NAmEˈrekləsli/reck·less·ness/ˈrekləsnəs; NAmEˈrekləsnəs/
LDC
recklessreck‧less /ˈrekləs/ ●○○ adjective
Word Origin
Examples
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not caring or worrying about the possible bad or dangerous results of your actions: He was accused of causing death by reckless driving. a reckless disregard for safety He ran into the burning house with reckless abandon (=without caring about the danger).► see thesaurus at