The son-in-law of one's grandparent-in-law's sibling.
My co-cousin-uncle-in-law is a good person.
Son of their grandparent’s full sibling with the other grandparent’s full sibling.
My double-cousin-uncle is a good person.
1. The son of one's grandparent's stepsibling.
2. The stepson of one's grandparent's sibling.
3. The son of one's stepgrandparent's sibling.
My step-cousin-uncle is a good person.
Son of their grandparent’s full sibling with the other grandparent’s full sibling.
My double-first cousin-uncle is a good person.
Son of their great-grandparent’s full sibling with the other great-grandparent’s full sibling.
My double-first great-cousin-uncle is a good person.
Parent's male half-first cousin.
My half-first cousin-uncle is a good person.
Grandparent's male third cousin.
My third great-cousin-uncle is a good person.