unfilial       
adjective  formal uk/ʌnˈfɪl.i.əl/ us/ʌnˈfɪl.i.əl/
 不孝的
not showing the qualities that are expected of a good daughter or son
  Failing to care for one's elderly parents has been publicly shamed in the village as "unfilial behaviour". 在这个村子里,不照看年迈父母的人会因“不孝行为”而当众蒙羞。 
 - More examples
 - His half-brothers' unfilial behaviour spurred Louis the Pious to change his plans.
 - The Buddha taught that killing is an ultimate act of being unfilial towards our parents and disrespectful towards our teachers and elders.
 - The perception that the children of working women are usually neglected and turn out to be unfilial should change.
 - He pointed out how fatherly his conduct had been towards the nation, how unfilial the nation's conduct towards himself.