unprepared
un-pre-pared
adjective
Not ready or equipped for an event or situation that is about to happen.
"She felt unprepared for the difficult exam."
Thesaurus
Synonyms: extempore, impromptu, offhanded, unrehearsed, extemporaneous, spur-of-the-moment, offhand, ad-lib, off-the-cuff, extemporary
Antonyms: prepared