Definition:
Done without preparation or planning.
Though delegates prepare hard before a MUN conference, you never know what is about to happen. You might have a good guess of what others have in mind on the issue, still the flow of discussion steers away easily to an unforeseen zone. Facing unexpected questions and situations, MUNers must react on the spot. Impromptu speech takes place most of the time and is a challenging yet rewarding skill. Distinguished delegates are often those apt in giving impromptu responses.
Examples:
He is a master at the craft of impromptu speeches.
Obama gave an impromptu press conference.
