double-half-uncle

1- Half-brother of mother and of father at the same time.
2- Son of maternal grandmother (mother's mother) and of paternal grandfather (father's father) at the same time.
3- Son of paternal grandmother (father's mother) and of maternal grandfather (mother's father) at the same time.

My double-half-uncle is a good person.

double-half-niece

1- Daughter of maternal half-sister and of paternal half-brother at the same time.
2- Daughter of paternal half-sister and of maternal half-brother at the same time.

My double-half-niece is a good person.

double-half-pibling

Child of a paternal grandmother with maternal grandfather, in other words, maternal half-sibling of one's father and paternal half-sibling of one's mother at the same time or also is the child of a maternal grandmother with paternal grandfather, in other words, paternal half-sibling of one's father and maternal half-sibling of one's mother at the same time.

My double-half-pibling is a good person.

double-half-pibling

1- Half-sibling of mother and of father at the same time.
2- Child of maternal grandmother (mother's mother) and of paternal grandfather (father's father) at the same time.
3- Child of paternal grandmother (father's mother) and of maternal grandfather (mother's father) at the same time.
4- Two parents's half-sibling.

My double-half-pibling is a good person.