off-the-cuff

Definitions

Spoken or done without previous preparation or thought.

Extemporaneous or improvised.

Examples

He gave an impressive off-the-cuff speech that moved the entire audience.

I didn't have a prepared presentation, so I had to make a few off-the-cuff remarks during the meeting.

Synonyms

impromptu extemporaneous unrehearsed spontaneous ad-lib improvised unprepared

Antonyms

rehearsed prepared planned scripted studied deliberate premeditated