All extemporaneously synonyms

adverb extemporaneously

• off the cuff — with little or no preparation; extemporaneous; impromptu: a speaker with a good off-the-cuff delivery.
• impromptu — made or done without previous preparation: an impromptu address to the unexpected crowds.
• unrehearsed — to practice (a musical composition, a play, a speech, etc.) in private prior to a public presentation.
• freely — in a free manner.
• on the spur of the moment — a U -shaped device that slips over and straps to the heel of a boot and has a blunt, pointed, or roweled projection at the back for use by a mounted rider to urge a horse forward.
• spontaneously — coming or resulting from a natural impulse or tendency; without effort or premeditation; natural and unconstrained; unplanned: a spontaneous burst of applause.