inadvertent
/ˌɪnədˈvɜːtənt/adjective
1- 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。
1.1
- (of a mistake) made through lack of care（错误）粗心导致的, 疏忽造成的。
派生词
inadvertence
nouninadvertency
nouninadvertently
adverb词源
mid 17th cent.: from IN-1 'not'+ Latin advertent- 'turning the mind to' （from the verb advertere）. The noun inadvertence dates from late Middle English.