not giving sufficient attention or thought to avoiding harm or errors 不小心的;粗心的 she had been careless and had left the window unlocked. 她粗心大意,走的时候窗户没锁。 ■(of an action or its result) showing or caused by a lack of attention (行为,结果)草率的;敷衍的 he admitted careless driving. 他承认驾驶疏忽。 a careless error. 一个疏忽性错误。 ■[predic.](careless of/about)not concerned or worried about 满不在乎的;无忧无虑的 he was careless of his own safety. 他不在乎自己的安全。 ■showing no interest or effort; casual 不感兴趣的,不做努力的;随意的 she gave a careless shrug. 她随意地耸耸肩。
派生 carelessly adverb carelessness noun 语源
Old English carlēas 'free from care' (see care, -less)