expression, i-adjective
unasked for; unnecessary; uninvolved
Used to describe someone or something that is not wanted, not needed, or not involved in a situation. Often carries a dismissive or slightly rude tone, implying 'nobody asked you' or 'you're not needed here.'
お呼びじゃないなら、帰るよ。
If I'm not wanted, I'll leave.
彼はお呼びじゃないって顔をしてる。
He has a look that says he's not interested in being involved.