Extemporary in a sentence as an adjective

I was on the debate and robotics team in high school, we did extemporary style in debate.

Extemporary definitions

adjective

with little or no preparation or forethought; "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments"

See also: ad-lib extemporaneous extempore impromptu offhand offhanded off-the-cuff unrehearsed