If someone has physical injuries, it's immediately obvious.
The Sun
That kind of ministry can bear fruit, even if the results aren't immediately obvious or measurable.
Christianity Today
I say smile but it wasn't immediately obvious what was going on.
Times, Sunday Times
On this outing, it was not immediately obvious.
Times, Sunday Times
It was immediately obvious to me that sophisticated know-how was involved in producing the forgeries.
Times, Sunday Times