cousin-aunt-in-law

1. The wife of one's grandparent's sibling's son.
2. The daughter of one's grandparent-in-law's sibling.

My cousin-aunt-in-law is a good person.

second cousin-aunt

Parent's female second cousin.

My second cousin-aunt is a good person.

first-cousin-thrice-removed

1- Great-grandparent's cousin.
2- Cousin's great-grandchild.

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

first-cousin-thrice-removed

1- Great-grandparent's first-cousin.
2- First-cousin's great-grandchild.

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

first-cousin-thrice-removed

1- Great-great-grandparent's sibling's child / Great-grandparent's first-cousin.
2- Parent's sibling's great-great-grandchild / First-cousin's great-grandchild.

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

first-cousin-thrice-removed

1- Great-grandparent's cousin.
2- Cousin's great-grandchild.

first-cousin-thrice-removed.

nonuple-fourth-cousin

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

Nonuple-fourth-cousin.