lacking with intellectual equipment; "unprepared to stand on his own feet" without preparation; not prepared for; "unprepared remarks"; "the shock was unprepared"; "our treaty makers approached their immensely difficult problems unprepared"- R
If you are unprepared for something, you are not ready for it, and you are therefore surprised or at a disadvantage when it happens. I was totally unprepared for the announcement on the next day Faculty members complain that their students are unprepared to do college-level work We were caught completely unprepared. prepared
without preparation; not prepared for; "unprepared remarks"; "the shock was unprepared"; "our treaty makers approached their immensely difficult problems unprepared"- R