The cause of the problem was not 'immediately' clear. [=is was not known right away]
They live in the house 'immediately' [='directly'] behind this one.
We need to leave 'immediately'. [='at once', 'right away']
(..) CONTROLLER: $ at percent... pay it off with another card at percent. Ah, shit! Federal heavy, slow immediately to match preceding aircraft. Over. CONTROLLER: Jesus, wake up! Wake up! SETH: The little girl asked me if she could be an angel. (..)1998 City of Angels