Russian to english translation the word 斜械蟹锌械褔薪褘泄?

i don't know how to translate it, i would say some thing like unaware or unexpected but i would like to know the proper term? none of the online translators help

褋谢芯胁芯 斜械蟹锌械褔薪褘泄 械谢械 斜械蟹锌械褔懈褟?Russian to english translation the word 斜械蟹锌械褔薪褘泄?
斜械c锌械褔薪褘泄 means careless or carefree. It is normally used to describe a person who is an air-head or doesn't care about taking care of things. For example:



袨薪 胁褋械谐写邪 斜褘谢 褌邪泻芯泄 斜械褋锌械褔薪褘泄 褔械谢芯胁械泻.

He has always been such a carefree person.



袨薪 胁褢谢 斜械c锌械褔薪芯械 褋褍褖械褋褌胁芯胁邪薪懈械.

He lead a carefree life.



袨薪 斜褘谢 斜械c锌械褔薪褘屑 褔械谢芯胁械泻芯屑.

He was a carefree person.



袝谐芯 斜械c锌械褔薪芯械 芯褌薪芯褕械薪懈械 泻 写械薪褜谐邪屑 屑械薪褟 锌芯褉邪蟹懈谢芯.

His careless attitude towads money had an astonishing effect on me.



There is no such word as 斜械蟹锌械褔懈褟. The noun is 斜械c锌械褔薪芯褋褌褜.Russian to english translation the word 斜械蟹锌械褔薪褘泄?
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