not resulting from or achieved through deliberate planning 无意的,非故意的,无心的 he was pardoned for inadvertent manslaughter. 他因非故意杀人受到宽恕。 ■(of a mistake) made through lack of care (错误)粗心导致的,疏忽造成的
mid 17th cent.: from in- 'not' + Latin advertent- 'turning the mind to' (from the verb advertere). The noun inadvertence dates from late Middle English