D defs.my
Entry 3 senses · 2 variants Webster, 1913

Impromptu

/ĭmˌ-präm'-pto͞o/ · Im·promp·tu · IPA /ɪmˈpɹɑmpt(j)u/
01 adv. [or] a. Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
  1. 1.
    Offhand; without previous study; extemporaneous; extempore; as, an impromptu verse.
02 n. Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
  1. 1.
    Something made or done offhand, at the moment, or without previous study; an extemporaneous composition, address, or remark.
  2. 2.
    A piece composed or played at first thought; a composition in the style of an extempore piece.(Mus.)