1. The brother of one's stepparent.
2. The stepbrother of one's parent.
My stepuncle is a good person.
1- Stepparent's brother.
2- Parent's stepbrother.
My stepuncle is a good person.
1- Steppibling's husband.
2- Spouse's stepuncle.
My stepuncle-in-law is a good person.
1- Steppibling's husband.
2- Spouse's stepuncle.
stepuncle-in-law.