Caught unprepared or by surprise.
how were the settlers unprepared for what they found in Jamestown
The noun form of the adjective unprepared is unpreparedness.
prepared
Ready
America Unprepared - 1916 was released on: USA: 22 April 1916
not the same
Unprepared?
running scared
The dream only means that there is something going on in your life and you feel unprepared for whatever it is that you are expected to do.
The dream illustrates the dreamer's feeling of being unprepared for some important event, such as an interview or personnel evaluation.
Unwilling, disagreeable, unprepared.