step-cousin-uncle

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.

first step-cousin-uncle

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 first step-cousin-uncle is a good person.

step-cousin-nephew

1. The grandson of one's parent's stepsibling.
2. The stepgrandson of one's parent's sibling.
3. The grandson of one's stepparent's sibling.

My step-cousin-nephew is a good person.

first step-cousin-aunt

1. The daughter of one's grandparent's stepsibling.
2. The stepdaughter of one's grandparent's sibling.
3. The daughter of one's stepgrandparent's sibling.

My first step-cousin-aunt is a good person.

Step Cousin

The half sibling(mother or fathers side) of your half sibling (mother or father side)

My Brother and I have different dads. I call his sister on his dad's side my step cousin

step-co-first-cousin-once-removed-in-law

Spouse's step-first-cousin-once-removed's spouse.

step-co-first-cousin-once-removed-in-law.

Step Second Cousin

A second cousin that isn’t blood related even though second cousins are barely blood related.

Man, I just found out that my second cousin isn’t my second cousin. She’s my step second cousin cause she’s not blood related to me.