third cousin-uncle

Parent's male third cousin.

My third cousin-uncle is a good person.

co-first-cousin-twice-removed-in-law

Spouse's first-cousin-twice-removed's spouse.

My co-first-cousin-twice-removed-in-law is a good person.

cousin-aunt

Parent's female first cousin.

My cousin-aunt is a good person.

septuple-third-cousin

Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and fourteen great-great-grandparents in common.

Septuple-third-cousin.

septuple-third-cousin

Septuple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and fourteen great-great-grandparents in common.

My septuple-third-cousin is a good person.

septuple-third-cousin

Living being that has zero parents, zero grandparents, zero great-grandparents and fourteen great-great-grandparents in common with other living beings.

septuple-third-cousin.

first-cousin-twice-removed

1- Grandparent's cousin.
2- Cousin's grandchild.

My first-cousin-twice-removed is a good person.