D defs.my
Entry 1 sense Webster, 1913

Extempore

· Ex·tem·po·re · IPA /ɛkˈstɛmpəɹi/
01 adv. Without previous study or meditation; without preparation; on the spur of the moment; suddenly; extemporaneously; as, to write or speak ext…
  1. 1.
    Without previous study or meditation; without preparation; on the spur of the moment; suddenly; extemporaneously; as, to write or speak extempore.[Obs.]