01 adv. [or] a. Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
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1.
Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
Entry
3 senses · 2 variants
Webster, 1913
Impromptu
02 n. Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
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1.
Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
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2.
A piece composed or played at first thought; a composition in the style of an extempore piece.(Mus.)