Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and thirty-one great-great-great-grandparents in common.
Irregular-sexdecuple-fourth-cousin.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and ten great-great-great-grandparents in common.
Quintuple-4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and ten great-great-great-grandparents in common.
My quintuple-fourth-cousin is a good person.
1- Great-great-grandpibling's great-great-grandchild.
2- Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and two great-great-great-grandparents in common.
4C: Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and two great-great-great-grandparents in common.
My half-fourth-cousin is a good person.
Great-great-grandparent's sibling's great-great-grandchild.
My fourth cousin is a good person.
1- Great-great-grandpibling's great-great-grandchild.
2- Living being that has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and two great-great-great-grandparents in common with other living beings.