unprepared

adj

1. Not prepared; caught by surprise.

   “The castle was unprepared for the assault.”

   ““It'll be all right,” I assured her. “Make a rule for yourself not to speak to anyone, and nobody's going to guess you can see. It was only being quite unprepared that landed you in that mess before. ‘In the country of the blind the one-eyed man is king’.””

   “I was unprepared for the change in attire and started slightly when the alectryomancer reappeared.”

noun

1. A black mark given to a pupil who arrives at a lesson without the necessary items or preparation.

   “"He's got another rule: Whenever he gets three unprepareds in a row, he leaves the classroom."”

verb

1. (form-of, participle, past)simple past and past participle of unprepare