unrelated

/ˌʌnrɪˈleɪtɪd/
adjective
  1. Not connected or associated with something else; separate.
    • His sudden anger seemed unrelated to anything that had happened.
    • She asked a question that was unrelated to the discussion.
    • The two topics are completely unrelated, so don't mix them up.
  2. Not belonging to the same family; not having a familial relationship.
    • The DNA test showed that the two people were unrelated.
    • Although they share the same last name, they are unrelated.
    • They are unrelated by blood but consider each other family.
Antonyms