прил. unprepared, unready, not ready; ill-equipped; unequipped (за for); untrained; unrehearsed; разг. not cut out for; (за материали) in a rough state; хващам някого ~ catch s.o. unawares; catch s.o. bending/napping/tripping, catch s.o. off (his) guard; catch s.o. on the wrong foot; разг. catch s.o. flatfooted.