이민자 (보다 공식적 또는 법률적)

I'm sorry, but it seems there is a misunderstanding. The text "이민자 (보다 공식적 또는 법률적)" appears to be a mix of Korean and a description in parentheses, which translates to "immigrant (more formal or legal)" in English. This is not a Spanish word or phrase. If you meant to inquire about the Spanish equivalent of "immigrant" in a formal or legal context, please let me know, and I can provide information on that. tuntematon